I like your shading, too. The play of light and shadow is really cool. Since she is bending forwards, her upper body does seem a bit too long. Clearly, I don't know your reference, but to me, the butt seems extremely big and it looks very symmetrical. That is what I would want to change. But overall, I like your drawing very much!

I like your shading work but I feel like there's too much gap between the ribcage and pelvis. Maybe measure it against your reference.