The details are amazing, it is a very beautiful image to color. Since there are lots of stuff going on in the image have you thought of big masses of color? What I mean is that most stuff remains in similar shades. and just some stuff gets accents of color.
For example, most of the image can have lilac, and burgundy tones and the shape of the window can color the stuff in warmer tones like oranges and salmons. This kind of illumination based on opposite colors give images a pop.