Very well done, especially getting different base colours to share the same "hue" . I just have an issue with the shadows by her legs and couch area, they seem to blend a bit which tends to cut my view of the image, you know like those websites with their huge footers or headers? It feels like that.
Still great colouring work just personally I would have liked the bototm part to have more ... dammit can't find the word.. "contrast"? example If you used colorize then shifting the luminance a bit would work nicely.
You are right about the shadow. I should have paid more attention to that during the shooting. I had just a speedlight flash with a honeycomb on it to focus the light just on a little area.