The color, the background where the characters are setting in, what are characters are doing, taking a shower in the clouds and furry characters with body types that is popular for sexual desires. This probably means a person's sexual fantasy and the background symbolizes how beautiful they are to the person's eyes. What does it truly mean? This is all I think it means. This could also mean romance. If they're gay it's there is a sexual plot. I assume that because it usually is on deviant art.