This is a practice picture, specifically practice with painting the eye. For the eye reflection, I used Photoshop CS 5 to warp and older picture found
here and add it to the eye surface with some layer blending legerdemain. The idea was to make it look like the beholder was looking out onto an outer space vista. I honestly think this pic could be better. Bonus points to you if you can tell me the mistakes I made. There were at least two.
Digital Airbrush rendering in Corel Painter X followed up by postwork in Photoshop CS5, GIMP, and then back to Corel Painter X. Click to enlarge: