rule 34 2023 anthro anus artist name ass avian bdmon beach beak biped bird blue body blue feathers breasts camel toe claws cloud color swatch countershade feathers countershade torso countershading digital media artwork elemental manipulation feathers female genitals hi res holding knife holding object knife model sheet non mammal breasts nude outside pussy sand sea seaside shaded sky solo standing tail toe claws water water manipulation 8868838