For a show rig this isnt good enough mate, the cable management needs a huge over hall. some things to know when redoing it, electric tape is a huge no no, you can either lace your cables to keep them neat and tidy or use cable combs and finally every cable that is not sleeved try hide them. the gear you have in there can look amazing with a bit of effort put into this build.
P.S that false disc drive drw needs to go as well at the blue ray drive above it, optical drives take away from the look of a rig. specially if you want it to be a show rig.