Try making a render of a girl naked but not showing the genitals (Boobs - Vagina) then they will hit you with tomatoes. :) Nah usuakky if people don't like your image they just pass without saying anything. There are also some people who like the render - Image but see something wrong andthey kindly put their 2 cents, but as I said, 90% of the people who don't like, just pass without saying anything.