Transferring a bit of art during the FA drama storm. We will see what happens

Is my art too Mature?
I keep getting notes about the ratings of my submissions from the mods and admins about the ratings of my pics and having to remove the pics from my gallery. The Ratings rules are so vague. I try to stay within site rules but at times I feel like I'm chasing my tail.
I'm confused. I've seen artwork on this site FAR more mature than anything I've posted and yet my pics have to be taken down?
My gallery keeps getting holes in it from this and I don't know what to do about it. :(