Good Morning, Afternoon, or Night to anybody reading this! 
So, around 1 hour ago, I made two wall types that I’ve design to have a Sci-Fi feel too it.
Any feedback or suggests on how I can improve would be nice because I feel like could of done better.
Screenshots:
Don’t wanna be rude or anything, but the blue wall doesn’t resemble Sci-fi at all to me.
The other wall is super good, something from Alien: Isolation, lol. However, I would suggest changing the bricks on that to metal. Love the window wall. 
This is pretty cool, for sci-fi, I think using the texture neon and metal are the best choice, and maybe slate as well. Colors like silver, gray, black, and blue as a combo would also be nice. But overall, good job!
I really don’t wanna be the bad of the bunch. but the sci fi walls look like they’re from some sorta circus. look up some sci fi walls and take inspiration.
Yeah, I would be referring mostly to the blue wall for that though.
