Looks neat so far, your block-in reminds me that I should do the same thing when starting out projects. The highpoly looks great, did you do it in maya? I work with maya all the time and I haven't got a clue as to how you would go about doing that kinda stuff in an efficient way.
Otherwise, I don't have much feedback I'm afraid, it looks good, the shapes and proportions etc. However, if you weren't aware, the scooter design is based on the Honda Motocompo, a really neat little scooter. Might be handy to look at the real life one for inspiration/reference, I'd love to see it in full 3d ^^
