As you can see, the face on the right (more of an oriental look) is a little bit more appealing than the face on the left. I felt it was a good idea not to add the lips, nose, eyebrows etc. It look's better this way ;)
The warp treatment for the face and forearm...
Next, i used the Liquify tool to get the reflections to 'bend' or flow across those tricky face contours ( otherwise not possible with the 'WARP' tool ). Direction is very important here, you can end up doing this for hours! :) but, well worth it!
also keep in mind about the 'brush pressure' , increasing it's value will distort the image very quickly! ... slow down ... keep the value at a minimum level, you'll get pretty cool, interesting warps!
And here it is, after the Liquify treatment!
color pass screenshot along with reflections...
Reference images for the background setup, followed by the flat color block and final grey shading with the runway light effects. coloring is yet to be done ;)
Proceeding with the other robots gazing at Celine!
I stuck with the same technique for the color process, only this time, the little robots won't have any reflections.