Windows to the soul

When I'm bored, I doodle eyes. And boy, do I get bored often.
This isn't even all of my OCs. I can't really stop myself when it comes to creating new stories.
Anyways! I tried my best to give each character eyes that would fit their personality.
For example Memoriam's (top middle, blue eye) eyes should be curious and chipper, since she's the type to crave to know everything. Either way, here are some nice facts that you could appreciate:
Catherine: Her eyes are black like structure gel or the void; they represent the mystery that is her soul.
Olivia has heterochromia. Her left eye is green (like nature: grass, leaves,..) and her right eye is blue (water). She is the aspect of life afterall.
Selene (top right corner) is blind.
Seraphine's (under Selene) eyes are deprived of emotion due to being suppressed as a child.
Lucille (above Sasha): Her eyes are colorful because she's a mantis shrimp. They are known to be very colorful and they even see colors that we don't. She also dyed her hair in those colors.
Sasha (bottom green eye): Her eyes used to be brown, but after being the host to the demon of hatred, they turned green.