Oh boy, it's been a long time since the intro of a buildlog made me lol twice! Welcome welcome here Gieron!
I must say i agree with you on the external tubes, i think they look pretty cool, and they drive the point home that this is an extraordinary case.
Also, the front window and the reservoir placement is a stroke of genious.
One tip i'd like to give you, is a way to get rid of the ugly fans in the front view. These noctua's rule, so i understand your choice, but damn they are fugly 
Waht you do is you place the radiator on the front, and the fans on the inside. You can do this and still have the barbs of the radiator facing inward. That way, you'll have just a rather badass radiator in view (it's the XSPC RX360, right?).
Oh, and you deninately will not want to look at the pump/PSU compartment when it's all done. The pumps and PSU both will receive a lot more cables, so it's not going to improve matters. Dont despair though, i have a plan... that you may or may not hate.
Allow me to complement your horrible photography skills with my horrible photo-editing skills.
Here is your new placement:

And here is the window:

Plenty of sidepanel left to hide a whole colony of rats nests, and you are still showing off the wonderful pumps. I have one too, and i just love the software control over it 
oh, and before you ask: yes, i did all that in paint. I'm just that hardcore. :066:
What are you going to cool with this setup? Just CPU and GPU?