Anatomy aside, the topology needs work. The edges bunching up along the front of the torso, legs and all over the feet are creating forms that aren't very flesh like. Also, looking at the poles at the throat and pelvis, you're going to have a rough time getting that to deform properly when you try to pose it. Have you been watching tutorials? Check out Jay's Alien, it has helped get a better grasp of edge flow logic in general.