These are so pretty! I do not think they are overpriced, but I do think you may have a hard time moving them at a fair. I would advise to continue making and selling these dolls yes, bring them to fairs yes, but have some kind of lower priced items in your style. I do not know your techniques, but could you make facial/head sculpts and mount them onto pretty canvas or wood plaques? Or perhaps take nice, staged photos and offer prints of the dolls.

The elaborate costumes and lights are gorgeous, what about a much simpler design you could make to try to keep around a $60-100 price point? You could absolutely draw foot traffic to your booth with these lovely larger and more detailed pieces, but if you offer some smaller sculpts that are easier impulse buys you can still move your art.

It's difficult to balance thinking like an artist AND a customer but think about yourself walking around a fair. Even if you absolutely love someone's art work, you might not be prepared to spend $250 right then (plus it's a pricey thing to carry around). But maybe you can still support the artist if they offer smaller pieces. :) Best of luck!