Good background, great lighting (especially number one), great post processing. I might try to burn out the bright spot on top of the forehead in 1, but that's it. Lovely work with they eyes.
In the first one the eye whites look very bright, it could be me, but it stands out alot from the rest of the photo. It could be what you are shooting for but for me it dosent seem to go with the photo.
Beautiful captures though. I like them.