btw, on the contrary, im VERY skilled at shading (light source shading) just lately ive been trying to do a style that is just quick and easy. reason why? Because i spend to much time on shading and detail that i got frustrated with the time i wasted, that i wanted to take a break... im about to upload a new pic on my topic that i did alot of shading.
(btw, u cant really give advice about shading when you dont do shading at all. the only shadeing you did do in one of your pictures was the first one, and you had light illuminating from the lines on her, unless its saposed to look like that. i still love your work, just dont "assume") ^-^