I'm not too sure about the changes to the books. The blue book now doesn't seem like it should be falling that way since it's so close (in the original it was thrown upward by the stumbling). Looking at it again, the removal of the purple book is fine. It's a trade-off between momentum and balance of the whole image, and the sprite is really about forward momentum.
I also looked at myself in the mirror and the arm now seems too short actually. My elbow almost reaches down to my hip, which is how it is on the original. The leg is now probably right if so many people agree, though I still don't think it was really overly long before. I don't mind it how it is now.
The shirt also seems maybe a little too poofy now?