I think that those saying about how they're "high" need to at least have a fair reason. Sure, 100+ points may seem expensive, but it's really not. It's only $1 or £0.79, which is not much at all. I could buy a chocolate bar with that money. I think that your commission prices are way too low — that's coming from a guy who can only afford the cheapest of your commission options. Keep in mind that the minimum wage for an artist varies between $6/£4.72 and $10/£7.87 on average. The quality and amount of time spent on your work feeds into what it's worth. Your artwork is of a great quality, and looking at it I can assume that you spend at least 1–2 hours on each piece. Therefore, I think you should raise the prices to a minimum price of 600 points. However, that's not in my hands, so do what you want. I just want to say, though; never undervalue your art. It's worth more than just money anyone could buy a cup of coffee with, a lot more. You're not just an art-producing machine, you're human—which people, for some unknown reason, seem to either forget or not consider—and you deserve credit.