no offense but if you have to use side by side comparisons, to convince people that it's different it's still way too close for people to plunk their money down on. for a personal project this work is fine, but if you want to grab customers it has to be original enough that you don't have to convince anyone that it's different enough to plunk their hard earned money down on. as has been said before you are going to have one chance to convince people to click on your thumbnail to even bother to see a larger image, and if the customer can't see a difference without a comparison they will pass it right by.