Two variants of th same task, I tried a few different ages and characteristics for each hand. The second image has a simple pass at the shadows that I wasn't totally in love with but wasn't planning to do a full rendering.
Really fun one! I have a lot of trouble visualising how muscles wrap around bones I'm constantly doubting myself over their thickness and then I end up drawing them 2 dimensionally. I really tried to push volume with these though, and it helped that I have a life model spare! Would really appreciate any and all feedback if poss.