Well, definitely a piece of solid work. But for me the site appears too plain, colorless and somehow boring. For a new customer it doesn't look very appealing. Of course, a business site isn't the right place for gimmicks or flashy colors, but I think you should try to spice it up a little bit.
What about one additional color beside this blue and grey? Or some more pictures? Maybe you should look over other business websites, just to get a rough idea what's possible.