first of all - correct eyes. they are bit

now.
More decisive blacklining would be welcome to divide elements and improve 3D impression.
Colour transitions are too abrupt. Use more intermediate tones between shades and highlights. Take a look at two folds at the back, right under bags. These are nice, copy the effect on other elements, especially on folds in the upper section of your mini.
Define edges better, make them stand out more (e.g. on belts).
NMM is awful. Sorry, can't help you with that, as I am a true-metallics follower.
Colour scheme for clothes is controversial to me

Violet preacher? with green patches?