Traits

The iris on the Pokemon is in tiers, with more than just the pupil, iris, and sclera. Can present in many shapes, and is standard on Pokemon like Shuppet, however can appear in other Experiments anyways. Variants with tiered irises will have the iris colour affect their grade. The portion surrounding the pupil MUST still be purple or it'll be an automatic fail.

Grade B due to pink in eye.

Example of a tiered eye with multiple tiers.