Let Your Hair Fall

The eyes and legs look a bit out of perspective but maybe that's just me. Because of the angle, despite her bangs some of the top of the band of the headphones should be visible.
Some strands of hair seem like they shouldn't exist, but that's easily overlooked and maybe you meant to do that. The small curves at the ends help a lot to add a feeling of mass.
If those are flat ribbons, the lines in the middle are a bit confusing to the eye. They don't seem to follow the curves of movement. Also, unless with concentration, the ribbons don't quite seem 3D, so the width seems to change, but again that's not really a problem.
Your shading makes me jelly... Same with the folds and electronic details...
It's an interesting perspective, and the eye is drawn down helpfully to her torso.
Overall, this is a wonderful drawing, especially for pens and marker! Sorry if this came out too critical... Good luck in the contest!!