I am done studying hands for now. Didn't get much useful critiques, so I will say this, not satisfied with either of these hands. The left one I could not figure out the index finger, and likely should have tried tracing it first to figure out the joint placements, but with this perspective it looks very odd and short compared to the middle finger.
Right one the thumb doesn't feel right at all, though I will admit I started to get a feel for how to construct the fingers better, but still not very good.
Wasn't getting many critiques in general, and does this even belong in /int/? I think I'm between /beg/ and /int/ to be honest.