Nice progress! It looks like you have clear understanding in a lot of places but don't feel like you have to rush through the course.
Make sure you keep practising the circle and line pen control exercises until your outcomes are smooth and well shaped! It seems like lots of your lines are drawn quite slowly which either makes them come out wobbly, or "chicken scratchy", but for the best linewoirk later down the road you want to be able to acurately and quickly make the lines for the cleanest result.
Also you should totally post some gesture drawing exercises here if you're doing them as I think we'll all here be able to better gauge what you need to work on.