Hi, posting on the off chance you don't mind some more input
2nd one is much more unique but is perhaps slightly overkill
A unique eye design but more simple than no. 2 could work well, if you can be bothered to re do it
She/They
Yeah, I only don't like erthtkv2 because of the mod's name. Make it "tkv2," and the mod will instantly become more popular. This is a valid reason as the name of the mod is still an important feature that no one seems to have yet discussed.
Hmm. The second eye type is more convex, so I think it's a bit harder to sell the illusion when it's mapped on a perfectly spherical tori head. I think what I'll try doing is reducing the contrast a bit on #2 and widening the pupil, to make it more like this: