As mentioned above, painted reflections aren't realistic.

If you're looking for realistic textures for Gen4 eyes, PDEyes and some of Rebelmommy's eye sets are a good place to start. Some of the elite textures at DAZ have nice eyes. There's a character at RDNA called Narre that has nice eyes. All of MEC4D's characters have nice eyes; Eli's are my favorite.

If, however, you really are looking for textures with painted reflections for whatever reason, I guess I'd recommend Thorne. Her characters have such pretty eyes; I wish she'd stop painting reflections on them. :(