nothing wrong with the white/grey..
but i feel there has been a overuse in the smudge tool... i think you were going for a photo/ish picture but it doesnt work... smudging is ok with some of the hair... but using it for the whole thing just makes it seem washy and watery... the face doesnt seem to have any defined features... take just under her eye... the cheek area has a smudge going through it and breaks it up... thats just one of the areas which has been done incorectly... hopefully you can see the mistakes and either correct them or rememeber this for futures pieces... not bad... but it could have been alot better...