Take the Brush Tool and add to the laces and to the ear-ring more details (taking into account that each color is placed on a new layer). For more details and for creating the shadows we have to create a new layer with the necessary color and group out these layers just not to get outside the edges: Layer ? Create Clipping Mask.



Inserting the shadow on the skin, means representing a kind of marking with the Pen Tool and Make Selection command and then paint it with the Gradient Tool.



Paint the girl's fingers situated in the shadow with the same color (Brush Tool). Then apply the same tool to add more shadows on the girl's hair. Now represent several white stripes near the contours situated on the lighter part.



The Gradient Tool will help us to separate more the shadows and the lights on the girl's hair.