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.
I agree with @clicky there there is too much distraction on the left side. With how the photo is now, I would suggest a vertical crop with your daughter and clam as the main subjects. Cut out what you can on either side. I personally really like the photo cropped in this way.
I think for another photo idea you could kneel directly behind her at her eye level or maybe lower, and capture her whole silhouette as she looks at the light sculpture. Also, with all the amazing colors I also think you could try framing her face at her eye level, up close, with the various colors of light hitting her face at an angle to capture her expression.
I really like your suggestion for reframing/reorganizing the shot. It would really capture that moment of awe a bit more intimately.