I concur with my homie yotsuya. Straighten out the logo on the marquee, and I'd see what you can do about the sides as well.
Personally I tend to shy away from putting a logo on the sides, since the main purpose of marquee is really to display the title, and the sides are for graphics display. (See AlienInferno's
Battletoads cab ) But you might opt otherwise, if so, I'd see if you could make the side logos straighter, and perhaps integrate them a bit more into the image as they feel like a tacked-on afterthought.
As for the Marquee, bigger bolder logo, so it really stands out. I'd go at least 2/3 of the image be taken up by the logo.
Don't concentrate so much on the graphics of Shredder being the focus here, Marquees are supposed to have a big and bold title, something that makes the cab stand-out among the others and is easily legible from at least 10 feet away.
I've always love the grittiness of the TMNT comic art, and I'd see what you could do to make the logo just as gritty. The white thick outlines are too clean IMO.
Like it's been said, good start!
