This is really necessary... I just have a acrylic plate covering the whole PSU area but this is a great idea... Please don't get it trademarked so I can steal this idea
I'm not on to watercooling my self yet but are those GPU blocks set up correctly? To me it looks like the lower GPU could end up with way less water flow? As I say, I haven't done a WC rig yet but wouldn't water take the most direct route e.g. straight out of block 1 and not in to 2?
I run 2 loops in my system that's why so many tubes,I cant really do anything with the sata cables without putting a tight bend in them.I tried right angle sata cables,but the sata ports on board are set to far back to be able to plug in.Swiftech suggest if using more than 1 gpu block to use parallel config instead of serial config that's why I have the flow set up that way,you wouldn't think it would work but it does.If I was gonna link the cpu to the video card I wouldn't go directly from cpu to video cards anyway,I would go to my 240 rad in front of case then back to my cards and back to res,so I would end up using same amount of tubes anyway.I don't believe in dumping warm fluid directly into cards from cpu, that's why I have the dual loops.Oh ya how not hear to appease Tom,only so much you can do with tubing.
I think to tidy it up and get rid of the emptyness of the whole case at the same time it would be cool to add a massive tube reservoir where the EBB holes are and having a real pump in the bottom and making it a single loop config also you may already know this but running directly from CPU to GPU will NOT make any difference in the temperature of the loop I can swear to you that. however I'm not 100% but putting them all in the same loop might add a few degree's to your case but really not much.
Then having a powerful pump on the floor of the case below that res.
And if you do decide to redo the tubing maybe get some clearer tubing or something if you go clear or with that res I'd get some Mayhems supernova clear to show off the liquid inside the res
Other than that looking great and that psu cover is pretty cool, I should make one of those I have a non modular psu lol