Adjusting color on a portrait to blend with an illustration?

[media kat]

I want to place a photo of a girl's head on a illustration of a princess (please see attached). I will color correct the portrait in LR, and bring it into PS to mask the face off the body. I'm not sure how to handle the coloring of the photo to match the style of the illustration. I want the photo to continue looking like a photo and I am not trying to make it appear as an illustration, though I want to try and blend the colors better. Anyone have any suggestions for how to deal with this? I will have two portraits that will be placed on the two illustrations below.

Thanks in advance for any suggestions.