Glowing Mermaid

I was thinking of sewing 3D-printed shells to the top and having light underneath them. For the pants, I want to sew long strips of different colors to the pants or sew white strips and have LED lights on the strip.
Glowing Sparkling Fur Outfit

I wanted to use my leftover fabric to make this kind of glowy sparkly fur outfit. I would really want to make the boots and the purse, but I’m not sure if I have the sewing skills to make the coat.
Glowing Mummy

This is my most “Halloweenish” idea, but basically, it is a mummy that glows yellow/orange. I want to use linen and have lighting strips underneath it.
The NeoPixel
I tried to do the Neopixel exercise and it failed, however I know what I did wrong.



My wiring was wrong, I basically turned the NeoPixel wrong which meant I was shorting out my circuit.
Down below is a video of my NeoPixel working after I fixed the connections.
Fun ideas and sketches! I’d say the first two are most achievable. But I think you should go with number 1 because the boots will look too much like the commercially available raver LED leg warmers: https://www.amazon.com/CanB-Warmers-Winter-Covers-Hosiery/dp/B0CMBZR9PN/
and I’d encourage you to pick either the top or the bottoms for your LED adornment, not necessarily both. We don’t have a lot of time and so keeping it to one circuit/garment should keep it in a reasonable scope.