my bike on a 50's-60's background,
Bill, You made me re-read Cus' post and look at the picture again. If you look between the cables and the handlebars; you see white where there should be background, also look at the shadow's sidestand..it doesnt reach the bike. There are also white pixels visible on the edges of the mudguards. It's well done though. I used to do that sort of thing for a living. You get good at checking your own work for such things before its printed billboard size.
Cheers,
Iain