This eyeball is much better because of the color. The blue really shines. The creepy face in the reflection is a nice touch.

Simplistic drawing, but amazing. Really like the texture and coloring. Great work.

Cool eye

I like this one i was really "AMAZED" at the "TEXTURE" and even the color blue of the eyes it reallywas nice andgood texture, but the "SKIN" had some really great skin texture giving that realistic look, so i guess in that aspect of things it was pretty good, and shows the effort you put into this so nice effort there indeed, and i look forward to more, as for improvment on this piece, maybe a larger canvus, as this one was a tad small, and while you did have good detail, a larger canvus would show off more of that detail, so thats something to try new at least. So with that said, i fount this art piece very interesting, had abit of artistic value was showing the effort and time youput into this, and hope to see more stuff like this from you, your style is great so keep up the awsome art work.

~~THINGS TO IMPROVE ON~~
The hardest part is taking a part details of your piece and thats not what i want to do but there are a few things that could be improved with some small changes and adjustments all for the better so try a few of the tips and ideas and you will see in the long run it will work, below are a few of them. With this particular piece, maybe a larger canvus, maybe even something with backrounds.

Nice one

It looks like the last thing the serial killer sees before killing someone

again with you!

is that an alien in the pupil?