The second is better, The first one would be great if it looked more like you were in the arc of those pillars. You want to make sure that even if the background is totally different (ancient greek looking pillars) that you are involved in them, you are mixed in. Think of the Ferrari pictures where the car is in the middle of an old italian town on a cobble stone street.
Its great because its a modern machine, a triumph of moderd tech. and its mixed in with a beautiful image of our past. The contrast is awesome, as long as they seem interrtwined.
The second image is great, the murrel behind the car is close enough to make it seem like the car is en-velloped in it. very nice pic dude, that is worth something.