>>1746989I see, it makes sense now. I'm in no way good at drawing shadows either but this should at least get you started until someone that knows his stuff like Derpy or daul can give you a proper critique.
Also for the right hand, I think the placement is fine but you'll have to shape it up better, especially the fingers. Try and find similar picture to use as reference. Same for the shading of her hair, try and find a character with a similar pose/haircut/visual style and imitate the shading.
The gradients wouldn't be too bad if you used them everywhere on the image, personally, I'd just stick to solid colors like you did for the shading at her breasts.
Lineart looks fine to me in general, done a bit too thin to my tastes but that's just me. One thing to fix is where her left thigh overlaps with her bloomers: the shape for her thigh look as if it was under her bloomers, not over them.
