Maze pattern

Hello!
I’m trying to create a tunnel like the one in the attached image.
(here in case the attachment doesn’t work : https://www.dropbox.com/s/ck3x5y5poq6o7kz/Maze.jpg?dl=0)
I’ve been playing with a few ideas, mostly trying to clone on splines, working with S&T etc..but the tricky thing is to achieve the mix of texturing, maze pattern, outlines etc…

Any suggestions on the best way to approach this?

Thanks!