if your doing a neo geo based machine, just do a red cp with neo geo logo's on it or do a modified neo geo cp like i will be doing. like he already said, it's too busy and too...generic to just put a bunch of logo's on it.
if you want to do neo geo modified, just make a huge red background the size of your panel, do diagonal white lines mirrored accross the very center, and do black blobs encircling your buttons. for extra pizaz, stick a neo geo, mvs and snk logo above the center controls in small writing and make the black blobs interesting, like non-circular shapes. all of the logo's for neo geo can be found at the AAL, as well as a regular neo geo panel for ideas.