The hair lacks dimension.
On this reference sheet, Garnet's depiction (third from left) should provide a good example as to what you should do with the hair. In its current state, her hair resembles a piece of bread, and although the example shown does not portray the exact pose you are spriting, her hair should resemble a rounded off cuboid.
Anyhow, good job. Look forward to seeing what happens next with your sprites.
On this reference sheet, Garnet's depiction (third from left) should provide a good example as to what you should do with the hair. In its current state, her hair resembles a piece of bread, and although the example shown does not portray the exact pose you are spriting, her hair should resemble a rounded off cuboid.
Anyhow, good job. Look forward to seeing what happens next with your sprites.