Teeth looking different is a good trade off I think as in the source and previous upgraded versions they weren´t even teeth, just some distorted textures there. Regarding the eyes, in that particular scene it seems Topaz already changed the colour of her eyes a bit from black to dark brown, and then HitPaw made them look like some blueish grey. That could be fixed with Photoshop, frame by frame or finding a way to improve the eyes keeping the black colour (which is somehow appreciable in the source screenshot albeit quite blurry) and then masking that part in the upgraded v2 version. I´ve been checking the improved scenes and that issue is present at concrete shots, then in other shots we see the black eyes. There´s no easy solution for this unfortunately...Don't get me wrong, you're getting a lot out of a little. But as is still usual the A.I. is guessing, which is why her teeth are different and her eyes aren't black.
Cheers