Don't allow this to fool you into thinking it's because you are an artist.
I have a terribly banal discussion with a mediocre nude model today. She was complaining that only her nudes received favs and comments and not her shitty flower pics. The problem was in her mediocre little mind she confused the attention her areolas were receiving with artistic appreciation.
Now let me say I am a strong proponent of artistic nudes- the human body is the finest subject of art one can have. That being said, just showing off your ass does not make you an artist. Quality and adherence to the basics of visual art - composition, contrast etc etc are important.
Poorly lit blurry photos of a pimply labia and sagging cellulite ridden asscheeks do not qualify as fine art. This also applies to dudes who think flat lit images of their wangs are art.