I would make them them into a closed species as they are such a cute design!
Not totally sure on what I would call them, but I was thinking of Caorleis or Kalmines.
They will have a series of different tiers, although the traits listed are currently a work in progress.
• Non-Rarity •
Weight edit, pupil change/eye shape change, accessories (have to be removable), scars, no claws, extra shinies, and tattoos/markings
• Standard •
No line edits (exception of eyebrows), heterchromia/same eye color, paw pad color, claw color, eyebrow shape change
• Common •
Slight line edits, long claws, hair to shoulders, nub tail/no tail, smaller horns
• Uncommon •
Backmane, hair to ankles, ear edit (dog ears/horse ears), tail edit (dog tail/cat tail), thicker/thinner fur, longer horns, custom tongue
• Rare •
Blind eyes, extra/missing eyes (max of six), extra/missing limbs (max of six), horns/antlers, multiple tails (max of four), multiple ears (max of four), long/no teeth, dwarfism, halos, slight muzzle change, colored blood, elemental mutations, multiple head (max of two), hair length endless
• Fabled •
Wings, plant growth, goopy body parts, bones showing, extra eyes (max of eight), extra limbs (max of eight), multiple tails (max of six), multiple ears (max of six), multiple heads (max of four), gene splicing, munchkinism, prosthetic body parts, transparency, gem growth, different limb placement, any line edits, hair anywhere, unicorn horns, cloven hooves