I like the graphic you and Dub are working on but...
Since the sticker goes on the window, it would be better to have a vinyl decal cut out for the sticker rather than a solid black sticker. The vinyl decals look better and last longer. I don't think we can use such a detailed graphic for vinyl cutting. The design would be great for a t-shirt .
I like the side profile VX you posted with the people & dog. That's what I was thinking for a good vinyl decal.