this is yana cova as spider-woman and my first attempt at this character. i don't think the lighting is quite right but, overall i am happy with the way it turned out.
You've got a good handle on the costume shading, the hairline/mask is a little off, I think the lightings fine (crossing shadows are cool). You could spend more time on smaller details.
The wall could use some texture... say, bricks for example. Yeah bricks would be nice, bricks are cool!