Fantastic colours! The shading slightly reminds me of romantic era paintings, which I think gives it a stronger atmosphere. Good use of textures, too. Maybe a little more static could give it less of a 'plastic' look? Another suggestion might be to work on facial expressions, or emotions, and using heaps of different tones gives a picture more life, too. You're doing really well, but I think their are just a few subtle things that need a bit more development.
Beautiful clothing design! I'm really liking the 'checkered' look, gives it a hint of surrealism.