- (1) & (2) so the symbols on their face glow or change colors depending on their mood, red = being embarrassed, yellow = happy and blue = sad (black might indicate anger, white indicates feeling numb, green envy, etc.) if they're content it stays the default color. And the symbol's shape is based around the personality and or the talent of said "bunny person", think like cutie marks.
(3) yep. So they can't breed, instead normal bunnies just randomly evolve into these guys!

