you ask for suggestions so here you go ^^
when looking at the picture with the eye i wished to have a more “in front” lighting… so that you dont get shadows on the iris… i am no photographer but as far as i know theres a rig to mount on the lens that has lights all around? that would make the iris’ colour stand out more and would get rid of shadows… for textureing use shadows are always a hindrance. you could practically use that image as a texture without big modifications… (except the highlights of course)
apart from that your pics are wonderful.
great stuff you can study from, see how wrinkles and pores “work”, where specular highlights are etc…
cant wait for more of your pics to come.
thank you again for sharing 