I don't know what the policy is on double posting here on the General Artwork forum, but I do want to let you all know I drew two more drawings and would like some advice, especially with this first sketch.
One of them is just sketches of feet and hands. I would love to have some reference or information on how to draw hands effectively. I don't think feet will be a huge issue, but if it does, I'll speak up.

See that really bad looking hand at the bottom left? Anything I can do to avoid that?
With the other one, I wanted to put more action in a drawing. Someone punching someone. Yeah, why the heck not.
I think this drawing came out really well.
I would really like some help with hands. They look all right in the second drawing with the punch, but I still struggle. I would like to have it less of a struggle. So is there possibly a good tutorial on hands? I've seen a video from Mark Crilley drawing hands, but are their other good tutorials?