Of course you're not seen the full detail of the roses, just representations of them, including colors that (probably) don't exist like black and green. The card's info says:
Roses in June
Equip Spell
Equip only to "My Little Pony June Rose". While you control "My Little Pony Summer Shores" and "My Little Pony Ocean Dreamer", the equipped monster gains this effect:
- During battle between this attacking card and a Defense Position monster with less DEF than this card's ATK, inflict the difference as battle damage to your opponent.
Common