I am by no means a Drawabox expert or anything, Just trying to give feedback as best I can!

Looks like you improved quite a bit from the first picture to the last one. Your lines look strong and confident.

You seem to struggle with that very last point/corner of the box, I guess that means you’re on the right track, since everyone I’ve seen so far (myself included) had this issue once completing the initial 250 boxes.

Overall very good practice you have done here.