Organic Forms

You're alligning the ellipses to the axis, and the lines are mostly pretty confident, so good job on that! There are a few issues, which are that you aren't sticking to simple sausages; they should be 2 balls connected by a tube of consistent width, so no bulging sausages.

And that you aren't hooking your contours, check the lesson notes again on that.

Arrows

Mostly confident though with a little bit of wobble at times, remember confidence is always more important than accuracy. Don't rush the hatching, plan every mark you do, and try to exaggerate more how they get bigger as they get closer towards the viewer

Textures

Good job, try not to outline every single form, focus on drawing only cast shadows and try to wrap the textures more around the contours on dissections

Form intersections

Good job overall, except a few wobbly lines. Try to mantain consistent foreshortening to your forms, and to do that I recommend to do only shallow foreshortening forms. You haven't attempted too many intersections, so try to be a bit more bold with how your forms overlap in the placing forms step of the exercise.

Organic intersections

In this exercise, focus on making simple forms, don't make complex ones, and just like in the organic forms exercise, don't forget to hook your contours. Draw through your forms too, even if you can't see them.