In terms of eyes... I created these eyes (not the character, the character was bought here) in about 10 minutes (I make a lot of eyes, so it's rather easy for me these days)... the sclera, lacrimals and iris were all created with real textures from 3d.sk (brilliant site)... I also use raytrace reflections, so there is no burnt in specular what so ever... I don't know about you, but I happen to love these eyes and think they are pretty close to the vibrance and "light" of the eyes in a lot of these photos... I plan to make many more based on different photos so there's a variety...
Since it was this post that inspired me to create it I may actually release a few eye textures for free if there's a demand for it hehe :) Hope you like them... let me know if you're interested...