Basically, if it conveys a message to the viewer, then, IMHO, it's art. Of course, the quality is entirely subjective, as is whether or not a message s actually conveyed. If a picture conveys meaning only to you, then it's a grey area - some such are purely onanistic, while others have so many layers of possible meaning that they are veritable masterpieces. Best thing to do - post. If people react, then be proud. If they don't, keep plugging away.

Remember, kids! Napalm is Nature's Toothpaste!