That's my personal opinion, yes. With me, it was just a guessing game. I started out charging cheap for my art and then no one seemed to mind the huge increase. You could try a trial period with your art and say something along the lines of "I am charging this much, but if any of you disagree then I am willing to haggle down the prices". :P
At the time I was at my bf's house using his laptop. ;P
I think your art is adorable and I think you shouldn't price any lower than 1k gold. That's just me though.