Yo, welcome aboard! Im a bit late to be saying that given how much work you’ve done and all but I was away this month 😅 sounds like you are determined to get that spot, thats exciting!
Look, im not going to give you a critique on one piece or another at this point, rather I notice that in general you might be held back by a lack of practice on your line making. My recommendation at this point is not to rush, really, just take your time, do as many retries as you need, try using the shoulder always and be wary of proportions and line shapes.
You may have heard the advice before but that’s because its true, no matter how much knowledge you gain or how fast it wont make you become a better artist any faster if you dont work on the most basic of foundations. Kinda like “not making a face if you cant make a sphere” or dont run before you can walk and crawl. Also, there are work arounds for almost everything so as you learn you may use straight lines to make your circles or scratchy lines and erase/smudge etc etc, you obviously dont have to be perfect
Cheers and good luck!
