I don't like them. I love them I need a lot of practice with my skills on hands. I always leave them till last and for good reason. They keep me well awake into the night, cursing as I erase and re-do them till I am happy with the look.
Oh and I actually think Cammies thighs look fine, just imo.
Hm... [link] and [link] might help. But try copying your own hands in the mirror as you draw. Just remember it's a mirror image (I sometimes forget and my characters left and right hands were switched!)