I was just looking for the photoshop gallery here and there isn't one, hence I figgered somebody had already asked in this forum.  but it's rare for somebody to create an image just using photoshop here. mostly it appears that the original source is a photo (camera), an image ripped from a DVD, an image downloaded from a website, or a 3d render.  so I agree that a photoshop gallery would probably get many images posted to it that belonged elsewhere.  photoshop is more a means to an end than the beginning IMVHO, altho the thing to the left of this message, and various similar anims, were done only using photoshop.  but they would go in the cartoon or 2d category.