Hello FigBanana, I'm ThatOneMushroomGuy and I'll be the TA handling your critique today.

Arrows

Starting with your arrows you're drawing your marks with a good deal of confidence which helps solidify the feeling of fluidity that arrows posses as they move through all the three dimensions of the world they exist in. However your arrows have little to no foreshortening, make sure to explore the size difference between arrow segments more in order to make better use of the depth of the page and push your understanding of tridimensional space further.

Your usage of hatching helps you establish how your arrows twist and turn in space and further your own understanding of the tridimensional space these objects occupy, but do remember that your hatching lines must still follow the principles of ghosting and mark-making, they must have clear end and start points, be carefully planned, carefully executed and not end at arbitrary points. As a finishing touch to your arrows, don't forget to make use of extra lineweight on top of the overlaps to reinforce their depth.

In general you're doing well, so keep tackling this exercise during your warm ups in order take your understanding of arrows and 3D space further, experiment with the different ways arrows can twist and bend and move across space, try different rates of foreshortening and experiment with the negative space between overlaps, all of these will help you challenge yourself and develop your skills further.

Leaves

Moving on to your leaf structures your initial linework is looking fluid, but something to note is that with a single exception your leaf structures don't fold or bend in any way, this is something to keep an eye on whenever you tackle this exercise again, as leaves are organic structures that are affected by all sorts of forces, from the wind to gravity to their own weight pulling them down, as such you'll find that in plant structures leaves will actually be oriented in a variety of different ways, and you'll improve much more by thinking about the way these objects look when they move through the world from moment to moment, instead of just trying to capture how they sit statically within it.

When it comes to your application of edge detail you need to spend more time with the execution of each mark - because there are so many and they seem individually unimportant, you're putting less time into each one and so they do not properly rise off and return to the existing stroke - there are often gaps, overshoots, and zigzagging marks which are a mistake. that could be avoided by putting more time into the work. No mark you draw is unimportant - if you decided it was worth adding, it's worth giving as much time as it needs to be done to the best of your current ability.

There are several lines throughout your leaf structures, you've got several small and timid marks, and several big spaces of white which would communicate that the surface of your structure is smooth, this is a very explicit way of approaching edge detail.

There's much more going on than just a few stray marks implying veins and we can do much more to accurately communicate this type of texture, take a look at this informal demo on how to approach leaf texture, and make sure to give these reminders on how texture works in Drawabox a read.

Branches

Moving on to your branches you are deviating from the instructions for this exercise, you're not following the basic characteristics for branches - simple cylinders of consistent width and no foreshortening - and you're not following the instructions for how to draw the edges. You are also not following the correct methodology for drawing forked branches and knots which flattens your structures.

So remember how branches should be approached, by having your segment start at the first ellipse point, extending it past the second ellipse and fully up to the halfway point to the third ellipse, afterwards you'll start a new segment, making sure to place your pen at the second ellipse and repeat this pattern until your entire branch is complete.

For your ellipses do not forget to always draw through them twice in order to keep them fluid and smooth. When it comes to your application of the ellipse degree shift to your branches it can be improved, as it stands your degrees are too consistent and hardly change which is a mistake that flattens your structures. Remember that as a form shifts in relation to the viewer, so will the degree of the ellipses within that structure also shift.

Plant Construction Section

And lastly let's take a look at your plant constructions, where unfortunately you are not sticking to the instructions for the exercise as closely as you should have, which severely impacts the quality of your homework and how much you're getting out of it. So here are some of the issues present in your work and how to fix them.

Always keep in mind that the construction methods and techniques introduced in this course must always be applied to your work, as they're tools which will help you construct much tighter and solid looking structures, there are times where you deviate from the construction methods by not starting your branches with a minor axis or by not keeping your leaf structures simple and deviating from the leaf construction method. These techniques are not guidelines or suggestions - they are rules.

Speaking of not keeping leaf structures simple, because you're not following the leaf construction method you're more prone to drawing leaf structures that are folding unnaturaly present in your leaves. Keep in mind that even though leaves are very flexible structures, that mostly applies to their length and not their width. They're like a piece of paper, not a piece of rubber, they can fold and bend in a lot of ways, but they can't stretch or compress, and if you try to force them to they'll simply rip apart.

Make sure that you're always drawing through your forms and constructing them fully, I've noticed that in several of your constructions you don't draw through seferal of your forms, such as leaves or branch like structures, this limits your ability to work through these tridimensional puzzles and limits how much you're getting out of the exercise as not drawing throug your forms means relying on your observation skills, instead of engaging your sense of spatial reasoning and truly trying to understand how the object you're drawing works, where it comes from, what it attaches to.

Ease up on your lineweight, it's thick, with several passes going over the same marks and jump from one form's silhouette to another, which smooths everything out too much. Almost as if you pulled a sock over a vase, it softens the distinctions between the forms and flattens the structures out somewhat.

Instead lineweight must be subtle, used only to clarify the overlaps between the forms that are being built up, as explained here.

And lastly let's take a look at your usage of texture, which needs some work as you're deviating from the instructions, you're approaching it very explicitly, with random, haphazardly drawn marks or hatching which should only be used in certain cases, and not used to communicate texture. You also focus on large areas of black at points and often confuse form shadows and areas of local color for cast shadows, which stops you from communicating texture in the way it's approached in this course.

So let's revisit how texture in Drawabox is approached, by looking back at this page we can refresh our memory and see that texture through the lens of Drawabox is communicated through the use of cast shadows.

It is not used to make our work aesthetic or pretty, instead every textural form we draw is based on what's physically present in our reference. Our focus should be on understanding how each individual form sits in 3D space and how that form then creates a shadow that is cast onto that same surface. Only after analyzing all of this information present in our reference will we be able to translate it to our construction. This means that the shape of our shadow is important as it's the shape that defines the relationships between the form casting it and the surface it's being cast on, which is why we need to consider carefully how to design a shadow shape that feels dynamic.

This approach is of course much harder than basing our understanding of texture on other methods that may seem more intuitive or basing it on the idea that texture = making our work look good, but in the long run this method of applying texture is the one that enforces the ideals of spatial reasoning taught in this course. By following these ideals, you'll find yourself asking how to convey texture in the most efficient way possible, with less lines and ink, focusing on the implicit mark-making techniques introduced in Lesson 2. Make sure to go over these reminders in order to solidify your understanding of texture further.

Final Thoughts

It seems to me that you're not taking as much time as you should with the individual exercises and understanding how they work and how they should be applied to your constructions. As a result it seems you don't fully understand how these methods and techniques are important and why they should be applied to your work, which causes the quality of your work and the usage of these methods to be very inconsistent in your pages.

It's important that you understand how to combine more primitive forms together in order to construct a structure that feels tridimensional. As such I'm going to be asking you for some revisions so that you can revisit these exercises before delving into more complex subjects. Take your time to look at the relevant lesson material mentioned here, then please reply once you're finished with:

1 page, half of leaves, half of branches.

4 plant construction pages.