You've got four different styles pasted on there, it looks amateur. That's okay, not everything needs to look perfect by any means, but what are you wanting to get out of your marquee? Do you want it to tell people a list of the the types of games they can expect to play on it? If so - yeah, that's doing the job. I look at that and know I can probably play platformers, fighters, and some classics. If you are wanting it to look like a professional machine, then you need to rework it, comes up with a theme, make the font bigger, take out some of the characters, and doctor the plain background a bit.