Sigma xeno sketch (Patreon)

Nothing fancy, just wanted to draw the current sigma xeno critters I've made.
I imagine them to be about the same size and complexion of the prime beta 1, varying depending on the species (Laura for example in the comic is a beta 1 xeno)

But I really made this picture because of how I imagine their eyes, with a bright effect on them, mostly a reflective capacity (just for show, not actual biological/useful reason, but maybe they might see well at night))
In any case... I like to draw their eyes a bright light color, usually blue... But I guess since they're often more custom-designed people could choose from different uncommon colors, like purple, pink, orange, usually the saturated and most artificial looking.

What other modification they might have?... I still got some ideas in mind, but they're probably the ones with the strongest xeno conditioning, but might work differently too.

Idk, I'm just bored x)