It does look really cluttered. I keep in well organized till I go to build something then it all goes to pot and have to spent a night reorganizing it all.
Got into cryptocurrency mining for a little while this was my first attempt at making one. It worked great just ugly.
Cleaned it up with a milk crate.
Have three Gigabyte GV-R927OC-2GD R9 270 OC 975MHZ 2GB video cards doing the work.