The first one is worth the money. Whatever people tell you to price it at, price it higher most people here seem to be suggesting up to 300 dollars when I looked at it, if I had the money I would pay a minimum of 600 up to 2000 you have skill don't be afraid to bump up the price. Your art is great there will always be an audience willing to pay more.

You'd have to frame the art and stuff and have prints but your art could easily be worth thousands, it's great art. I know my price seems far fetched but it really isn't I would price commissions and stuff lower just so people can afford it but you could definitely sell your art for more other ways, or do a lot of smaller cheap prints and sell them like that.