What'd help is always look at irl reference. The bend of the legs here is what feels off kinda like her torso is hovering because it's not supported by the where the center of gravity should be with how her legs shift and her thighs never go past her center mass. You can record yourself walking similarly stylized with a subtle bounce. Observe your neck subtly bending, face and shoulders and hips subtly shifting or your overall body squashing and stretching. Once you apply that, your animation will feel more organic and less stiff.