Sorry for the delay in getting back to you.
As far as I can tell only two of your sprays have been blocked by staff.
One of the sprays in question is pretty clear it violates our rules (this one was several months ago). However, for the more recent spray it is not as cut and dried. That said, I could certainly see why one of our staff members might have blocked it under our rules against overly sexualized images. There is inherently some subjectivity from one staff member to another but I think it's safe to say that they are not the only person tired of seeing large-breasted anime characters in game. I'm inclined to agree as there are websites more suited to that sort of thing as opposed to an online multiplayer game.