Human brothers + Alive cat, just for fun
Don't worry about Suchai's mask, the marker'll wash off.

Lake got to keep his heterochromia but for human versions the pair's natural hair colour is gonna be dark.
I thought about them maybe dying their hair, so. Lake wouldn't dye his hair. Suchai definitely could, but I didn't want this version of him just having the same hair, and I don't think he'd go for red either.
I tried a few other colours that were from their palette, and I think a couple blues? but I just settled on bleached hair instead of dyed. He can change it up, anyway (and just bleaching - while still a lot of time & effort - is less than that and dying it. He's a busy guy!)

On the other side: this alive version of Kitty isn't what Kitty was like when cat was alive, just a living version of current day Kitty.