@Maso personally I think your spray is inappropriate due to the reasons @xGShadowSpy stated.
However, since the rules are a little unclear about sprays, we should just change them to what @Forest said:
Furthermore I'd like to give my personal opinion on this:
Baby ponies with spread legs are animals and much more inapprorpiate than anime girls.
I've also taken a look at the spray titled "notmyspray". If you use a picture as spray in games such as TF2, you lose quality (i.e it makes your spray look a little worse).
Call me a madman, but I can't see a camel toe:[spoiler=notmyspray in tf2]