Nice to see you maintained the same cartoony artstyle for George from the show, but just amplified him with extra stud and awesome. Also I love interpretation of the flying car. All-in-all it gives me the impression of a younger George before he settled down with his family and crappy job.
The vehicle and body are great, but I must say that the way you interpreted the faces of Shaggy & Scoobz was superior. George's face here is too similar to the original compared to the style of all the stuff surrounding him. Also, the youthful clothing fashion could have been more suited to a teenage Elroy Jetson, perhaps (though, admittedly, creating an aged Elroy would have been much more difficult).
Me and my fellow lads from Jerzy always traveled with mini guns on the side of our cars. They seems to help when yah get a little upset at slow drivers. So yeah....I just used a touch of real life on this pup.