First time Looks GREAT!!
On the wiring,, You are able to purchase(inexpensively) wiring harness/covers from any electric supply company, they come in various colours and offer a nice, clean, finish to the insides,, they are like a woven cloth,,
On my case mod, I have red with white flecks in them,, my cathode is black light, and when on the white flecks glow,,
further,, the cathode I have has a function where i am able to have it flash to the rhythm of music if i am playing cd's/MP3's,,,
Did you attach an acrylic cover in your window on your tower,, I cant see clearly in the pic?
Great Work Neb!