I don't know about anyone else here but I don't save poser setups once I create the image, so the only way I could fix it would be to do it in postwork which I don't do a lot of. Actually I do save some setups but that is only for clients so if they want a change I can do it, and I would never post that work in the gallery. I pretty much leave good comments. I don't go to the galleries unless someone points out something and then it's usually so good that only a good comment would do.  I am in agreement that once it's posted it should be there to enjoy, not tear apart. You can't walk up to a painting in a gallery in the real world and start marking comments on the wall next to it. Just enjoy them. If you don't like or don't understand what the artist is trying to say then move on to the next work. Sometimes I do stuff that is not balanced and I do that to disturb the eye rather than appeal to it.