rule 34 2012 anthro backsack balls biped black balls black fur black hair black hooves black stripes black tail cliff climbing detailed background digital media artwork equine fur hair hooves ivybeth male male only mammal multicolored fur multicolored hair multicolored tail nature nude outside rear view rock climbing signature sky solo striped fur stripes stripes character tail tuft tree tuft two tone fur two tone hair two tone tail white fur white hair white tail zebra 2470851