Hi there! Sorry for the late critique, I do my best but there are so many of them I can't keep up.

Anyways, onto the critique:

Arrows

These flow pretty weell and are pretty good in general. You could improve them if you exaggerated more exponentially how the arrows get bigge and bigger as they get closer towards the viewer.

Leaves

Good job. Some of them look a bit stiff, so don't forget this is just like the arrows exercise, focus on making them flow nicely.

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Branches

Pretty good job in general, you have some that don't have almost visible tails. One thing that helps is overlapping your strokes with the previous ones way more, kind of like when doing superimposed lines.

Plants

All across the drawings, I think you're doing mostly a good job. Though I'm not seeing much variety on them. Next time you do the homework for a lesson, I'd try to draw different subjects with different spacial problems.

There are a few things I think you can improve on.

First one is wobbly lines. You tend to focus more on accuracy, specially on leaves. Just like in every other part of the drawabox lessons, prioritize confidence over accuracy. It doesn't matter if a line goes off, it will always be preferable over a wobbly line.

Second one is lineweight. You aren't making use of it much. A good spot to use it is overalps. Adding a superimposed line to add lineweight can help a lot to clarify the relationship between 2 objects.

And lastly, drawing through your forms, which you aren't doing in some places, like here. Be sure to always draw through every form and to clarify the relationships between all forms, drawing intersections between them. This is very important, in this lesson and in all the lessons that come after, so don't forget about it.