Hello Sekhburd, thank you for getting back to me with your revisions.

Starting with your leaves they are looking good and it's good to see that you're delving further into leaf texture as well as constructing more complex leaf structures, just don't forget that all stages of your construction must be drawn with the same line thickness, you are going over some of your outlines more than once and it flattens the structure.

Your branches are looking alright, but it seems to me that you're not always extending your segments as far as they should be, and you're focusing too much on being accurate which causes some of these segments to look more unconfident than your original submission where you're extending them as shown in the instructions.

I've noticed that for these pages you had a tendency to choose more complex plant structures with lots of elements to them, while this is not necessarily a mistake it can end up limiting your ability to hone your skills and fully become acquaintanced with the construction techniques and methods, choosing some less leafy and more simple structures would have allowed you to focus more on applying the construction techniques and methods to your structures, rather than trying to juggle several elements at once.

Because we're drawing on a flat piece of paper, we have a lot of freedom to make whatever marks we choose - it just so happens that the majority of those marks will contradict the illusion you're trying to create and remind the viewer that they're just looking at a series of lines on a flat piece of paper. In order to avoid this and stick only to the marks that reinforce the illusion we're creating, we can force ourselves to adhere to certain rules as we build up our constructions.

• For example - once you've put a form down on the page, do not attempt to alter its silhouette. Its silhouette is just a shape on the page which represents the form we're drawing, but its connection to that form is entirely based on its current shape. If you change that shape, you won't alter the form it represents - you'll just break the connection, leaving yourself with a flat shape. We can see this most easily in this example of what happens when we cut back into the silhouette of a form.

While this is something that you generally respect, as you don't ever cut back into your forms you are extending off of these structures silhouettes in order to manipulate them here which flattens them.

While this approach may work on structures that are flat such as leaves for structures that have some volume to them we must ensure that each new structure we add to them also has their own volume that is clearly defined, making use of intersections to communicate that tridimensionality. Take a look at this informal demo for more information on how this works.

• There are some unnatural bends 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.

In general your work is looking better, but there are still some things that can be improved. I do believe these issues can be addressed during your warm ups and that you won't benefit much from any more revisions, so I'm going to be marking this submission as complete, but don't forget to keep this feedback in mind. Good luck in Lesson 4.