Leucistic Texas Rat Snake Eye Color Question

So I know there are three different colorations of the eyes, and that they can all be bug eyed. I know of the pink eye, blue eye and black eye.

My question, is what is the difference in the three colors? I am asuming pink eyed is a albino Leu.... how does the black and blue eye work. What coloration is worth more? From what I have been seeking, blues are the most desirable, followed by pink then black however I had not heard of black until recently, also I have never seen a bug eyed black.

What is the differance from black and blue in photos they look the same to me! Thanks

lol I didn't intend to put that "stop sign" next to my topic....