Good stuff. I can see what you mean about the leaf switches.
Looks like you've got space to play with their orientation. You might try lining them up vertically, instead of just diagonally any which way.
Also, since that part will be under plex, you could paint them and not worry about it getting chipped. I'd probably go with gloss black.
Finally, I think the exposed red wiring is doing a lot to "mess up the look". Plus those spade connectors don't help.
Several possibilities there:
1) You could do like Kneivel and solder the wires directly to the switches. Makes things a little more of a pain to work on though.
2) You could get some black wire, but finding black spade connectors might be tough. Alternately, use the spade connectors with no plastic sleeve, just bare metal with the black wire attached. That could work.
3) Pick up some cable cover (small dia) and run to each switch, covering the wires. That stuff is available in all sorts of colors.
For example
http://www.cheapcycleparts.com/products/51668-biker-s-choice-92915-wiring-wire-cable-cover-chrome-1-4More $, but it could look great.
I also like the Wood CP option, though I think the acrylic is more interesting. But, it might not be workable in the end.
Finally, A Solid wood back would work, but I think it might be a little odd to have one side acrylic and one solid. Maybe it's just me though.
Very nice. Glad to see you're still on it!