I'm a bit surprised that someone would share such valuable information, secrets, ideas, etc., that would directly have an impact on their income. Sure we can speculate about how much of an impact this thread will have on the OP's income, but I thought it was common knowledge that sharing some basic info is pretty harmless, while showing your all of your cards is entirely different and not too smart. It's hardly arguable that posting about a particular image selling well will no doubt result in at least a few copy cats producing their own version of that image, along with the usual slew of "inspired" images that will dilute that segment of the market even further.