okay sorry to be that guy.
I totally agree to what you all are saying in the complete bit but going off the rules of the site all of this is permitted. what is not allowed is the following, (copied of rules)
Child pornography: Any photograph or photorealistic drawing or movie that depicts children in a sexual manner. This includes nudity, explicit sex, implied sex, or sexually persuasive positions.
Bestiality: Any photograph or photorealistic drawing or movie that depicts humans having sex (either explicit or implied) with other non-human animals.
Watermarked: Any image where a person who is not the original copyright owner has placed a watermark on the image.
Poor quality images: Just don't upload them. Bad artifacts, small sizes, low quality overall job in drawing/coloring.