Is it really worth selling images/vectors to these sites? I've already have many vectors made from my previous projects, but I think it very time consuming to even upload them. Also every single file needs to be approved and some of them can be rejected. They usually pay ~50% per sale. They also advertise that top sellers make $20,000+. I know I wont make anywhere near that kind of money, but I'm just interested what percentage can be expected? Also is it better to try and sell cheaper and get more sales or less sales for a higher price? All the info you guys can tell is appreciated. Thanks.