I agree with the horse tips, and while I agree that the face needs more depth, I'd stay clear of adding more detail to the eyes, in fact I'd take some away.
At 1/35 scale you don't want the "whites" of the eyes to be white, but the same color as your flesh highlights. And while you need eyelashes, clear gloss on those tiny eyes is not going to be easy to control or to look right. At 20-30' (1/35 scale) away, if you see eyes, you don't see a shine. The eyes should look like black dots or slits, and not round dots, because you're not painting the black circle of the eyes, but ovular dots because you're also painting the colored part of the eye, and if you look into a mirror (without going all wide eyed crazy haha) you will only see about 2/3rds of your actual dot. So it's like a dot with the top and bottom painted over- look at that dio book by Shep- theres a great section of face painting where he does the dots as lines, then paints the flesh over top them to cut them down to slits.
Other than that- I agree, no need to go overboard. It's looking great Will