these three are a pretty good example of the variation amongst the species!

hoko (pink) is fairly slender/tall, has long butt fur
naki (orange) is basically your 'standard' build but he has scaly legs, a trait pretty common to kuniku from small islands like himself
gabi (purple) is from a much colder climate, is stockier/more muscular, has bristly back fur and a rare non-striped tail

as you can see cheek markings are a pretty common trait!