Working on keeping porprotions and dynamic energy.
I like your line style. It has an aesthetic character. Proportions seem a bit off for this one though. Try to think about how the knuckles are positioned and their relative positions to the top of the hand; they should align.
Way to go on your solid drawing DianaCoto. Way to go on how solidly you have drawn your hand above.
So, if I would provide you the most sincere critique, it could and should be that though you've done a greater job on your edges, your spaces, and your relationships, but there's not too much of the strongest, yet broadest humor and emotion in your hand gesture and pose? Would you kindly be able to draw out your broadest and longest and confident strokes with 30 minutes of 30 second hand personality sketches? (60 hands in total).
Like when you warm yourself up to those drawings, then your anatomy, proportions, and most importantly, your gestures of your hands, including the bone and muscle structures, which you should be able to find in your Frank Netter online searches on DuckDuckGo, or what else.
Cheers to you. Hope you'll find this really illuminating.
Hmm I definitly do need to learn to draw quicker. The exercise does sound a good way to really warm up. I am currently only practicing drawing one hand a day, which does take me a long time. Thank you!