If we really want to have a healthy and thriving forum for showcasing amateur astroimages, then we should also be respectful and sensible with our comments. If in doubt, it's best to restrain from making
suggestions and instead focus on what's good about the image. Having said that, becoming capable of providing useful feedback does not happen overnight and requires a degree of wisdom/experience, so mistakes will be made.
EDIT: Allan, I know I have not posted any new images for a while, but from memory, you have never tweaked any of my images...