In the future, I would use more defined shapes in the negative space/reflection are of the dark fabric to define the pose better, maybe some light hatching to define the curvature on the inside of the legs as well. It can be hard to determine at an initial glance with how thicc the lower body is, creating a big black mass and almost warping the area further toward the camera than your bases sketches imply. Just a small thing, but an overall great piece.