Again, YOU are the artist, im just a no art talent jackass.... but another idea (can you tell I really like the idea of that one ) are all the bikes you used the blue and white models? IF so, how did it look with them in color, but the black carbon background :dunno.
(Not directed at you Joe cuz Im pretty sure you dont know)
Are we 100% sure on the image dimension size that was given?? The height seems correct but the length seems to short.
The current banner is setup such that the middle will 'stretch' infinitely no matter how large your browser window is. Ive stretched it across my dual monitors and it just repeats the checker pattern in the middle with the two bikes staying on their respective ends.
I cant really see that being feasible with the designs that have been submitted so far.