The top images I rendered from Maya after completing the UV mapping for Mila. I did three passes. The first pass was simulating AO by turning all the materials assigned to the object white. The second pass is a specular pass and the last is a colour pass from the original Z-Brush polypaints that I did at the beginning of the character concept.
These three images were done in Photoshop starting with the above passes from Maya. The aim was to explore a variety of looks in a short amount of time. I played around with colours, textures and materials to give each image a different look (getting all of the bad ideas out of my system ;).