Thanks for your encouraging words chaps!
I did somewhat copy the Atari cabaret (Centipede / Tempest) design, as I like it. What also influenced the shape is that this has to be slightly wider than my vertical one, due to the monitor width. So to compensate for the extra width I 'cut in' underneath the control panel...just to make it comfortable as I tend to sit with my knees either side of the cabinet.
Because of this I also didn't want the marquee under the control panel (like the Atari design) as it would be too low. Also I noticed on the Centipede cabaret that the bezel goes into almost a mini marquee at the top...so I am going to have the marquee combined into the bezel, and probably put a light behind it (maybe all the way around the bezel?).
markc74: I'm not ready to order artwork yet...but also, have you seen this?:
https://www.facebook.com/arcadeprintshopI believe they can do laminated control panels and so on, so was thinking about giving them a shot.