Great. Unreal engine shines here. I stand by the comment of gordonfreeman01. Interesting setting, good aesthetic, and the old puzzle maxime "The most convoluted path is the right one". :-)
While the music was fitting, I had preferred when there had been more tracks to give more variety. The connection theme was subtle integrated by the puzzles to connect some parts of the maze - which seemed irreal, dreamlike at times.
The only thing which did not fit perfectly was the character body. It was not necessary for the experience but when you use one select a body according to the setting. A robot with a big U does not fit in the maze, in my opinion.
Regarding the file size limit, you can use the butler tool (itch recommends it) to avoid splitting the archive. I have used it as well with my game.