Decided i might have a go cause I haven't done a fighter sprite before and all the entries so far look great. had abit of trouble so i looked at a few other sprites. That helped alot. Don't quite know why I started with the pants, probably because I thought they'd be easiest. I think it looks okay so far, but I don't like the left leg (right side from our perspective) very much. Criticism is hugely appreciated.
Those look mega realistic, good job! I love the shading and shapes you did on the folds. Although it's a bit too dark, i don't specially see it as a problem, since denim pants exist in such colors. But keep in mind, when you're adding a top part for the character, that lighter colors will contrast with the bottom, making it even darker, while dark colors will bump up the general lightness look of the pants.