It's hard taking pictures in the dark. We went to see the Glowfari lanterns at the Oakland Zoo and this was my favorite photo. I like the composition with my daughter here looking at the clam shell but I always struggle with how dark is too dark and wonder if I should brighter up the subject a bit.
My main critique is that there is too much light on the left. I think the composition would be stronger if the camera were closer to your daughter to show the light hitting her face, and possibly with more darkness behind her. The squiggly lights in the background are fighting for attention with your daughter, when it really feels like her silhouette (lit by the light in front of her) should be the subject.
I like the colors though, and I don’t think she’s too dark (like you mentioned). Great photo! :)