Arrows

Pretty good job overall, they flow pretty nicely and are drawn confidently, only issue I can notice is that one gets out from the page, try to control more or less how much they're going to occupy so this doesn't happen.

Branches

Good job here too! I recommend overlapping your strokes with your previous ones more, so you get a smoother transition, as done here.

Leaves

Leaves are pretty good too, only issue I can catch is that you get a bit of wobble in some of your lines, as always prioritize confidence over accuracy.

Plants

Your plant constructions are pretty solid in general, good job! I'll go over the issues I can catch so you can keep improving:

-There are some places, like in your cactus, where you don't draw twice through your ellipses, don't forget you always have to do it in these exercises.

-When attempting detail, like the little ball-like thingies on the same cactus, you need to do it the same way as in lesson 2, don't outline forms, focus on drawing cast shadows

-On some parts you leave lines floating, like in your fifth page of plants, you probably just forgot, but pointing it out just in case.

-In this same page, there are some parts where your contours get a bit flat, on the plant on the right. Something that helps to avoid this, is to hook your contours, just like in lesson 2 organic form exercises.

-On your sixth page, you're cutting into your forms in some places. Try to work additively whenever you can.

-And something similar on your seventh, try to work additively whenever you can, and when you are adding curves to a leaf, just like in the leaves exercises, do it one curve at a time, constantly going back to your initial construction, like here.

-And lastly in your final drawing, there are some parts where you aren't drawing through your forms, don't forget to always do it. There's also some places where you went a bit too thick with your lineweight, try to be more subtle with it.

Overall pretty good job!

Your organic arrows look great just add more shading to them to help show which part is in front of which.

Add more line weight to parts of your leaf drawings to show the overlaps more clearly.

Your branches look fine just keep practicing to make your lines overlap better.

For your plant drawings some of them do not show the textures wrapping around the forms properly. For example on the second page the mushrooms don't really show the texture wrapping around the form. The texture just below the mushrooms head looks too flat.

Also even though you are not supposed to be copying your reference exactly still try and look closer at your reference and draw what you see more accurately as some of your proportions are way off especially on the pitcher plant drawings. Do not worry too much about making your drawing look exactly like your reference but don't go too far from your reference either. Make sure your forms still somewhat resemble what you see.