For those who don't know, Reia was a character first mentioned in Jaiden's "The Full Story of FNATAS" video, there it states that she was the first animatronic created in the timeline.

It was never revealed what she looks like, but i decided to make my own interpretation of her.

And yes, I made her red because when i think of the name "Reia" i just think of the color red so yea, hope ya like this design.