In general I really like it, but I do have to admit (even with the descriptions as to why they're integrated) the 'hot rod flames,' the "Fly the Friendly Skies" helmet writing, the Bug Stomper decal, and the skull and knife drawing all just feel...well, out of place to me.
It looks almost like a second artist came in on top of an already clean work of art, but wanted to add to it and did so by writing on the playfield with a silver sharpie and slapping on a couple of stickers. As if too much time was had and a "what else can I do" attitude was taken - and in turn too many things were added.
While some of the ideas as to why they're integrated make sense when described, why not save some of those elements to be incorporated via plastics or even simply used on the LCD rather than directly on the playfield? It just takes the depth away from the whole scene for me.
Again. I generally really like it. I'm just scratching my head at a few decisions made. I'm sure it'll grow on me...