The face still bothers me. Instead of adding a highlight, I think it's better to use a near analogous color for the shading instead of a darker hue. For this purpose, I've added another color to the skin palette. I also removed the nose, it's difficult to perceive and is not really necessary.

Top: original; Bottom: edited

With the new shading, the face looks more spherical.

Although you plan on reworking the colors, I tweaked the skirt by making it flare a bit (it doesn't have to cling to the thighs), removed the highlights and added more shadows instead to make it look like it has more volume.