Lirse eyes come in any color under the sun. They may be a maximum of two colors(secular heterochromia), and these colors can be any color that is not neon or overly saturated.
The shape of their pupils also varies, and may be slit like a cats, round, or horizontal like a goat's. Below are just a few examples of eyes you can create!
Please avoid adding too much shine or shadow; it should be easy to color-pick the eye color!