Your proportions are a little off- the distance from the top of the hip to the bottom is too long the ribcage on the left side is too long This is causing the whole torso to look too long and out of proportion. You did capture the gesture pretty nice, so the body has a nice flow. As far as the shading is concerned, you are not comparing your values before you are placing them. For example: you have the butt as light as the upper back- is that true? NO I did a quick sketch to show you what I mean, I hope it helps :)