First thread, first build

I'll be building a full-size cab with more horsepower in the future but a bartop will have to do for now. Over the past couple of days, you guys have taught me so much, it's unbelievable. It's amazing how much information is on here so a giant thanks to those who contribute!
As you can see, the Weecade was my inspiration for this build.
The hardware setup will be as follows:
- Raspberry Pi (early model B I had kicking around), overclocked w/ 16GB SD card. Running RetroPie.
- 19" Dell LCD ($15 on Kijiji!) already decased.
- Some terrible speakers
- 2 knock-off psx USB controllers hacked for the control interface.
- Happ Ultimate Joysticks (or possibly Competition joysticks) and Happ buttons.
28-inputs total
(8 directional)
(12 play buttons)
(2 player start buttons)
(4 admin buttons - Esc, Enter, Pause, Coin)
(2 pinball buttons)
I'm not exactly sure what colours or themes to go with so as of right now, it's a blank canvas. If anyone has a suggestion, I'd love to hear it!
Also, if there's anything you see here that you would do differently, please let me know and be harsh about it!

Here's a screenshot of the model in sketchup (ignore the colours):
