I Voted for 4, but what if you were to have something like #1 but the blue is black. I think i may have voted for that if you had that up there.
Though if you had where it was 2 black lines going horizontal (sideways) on the top and bottom with the aluminum in the middle like #1 but with black and sideways so it will follow the lines of the factory hoow a little more, instead of vertical lines on the cover, and horizontal on the hood, it's all horizontal.
~Bill
Just throwing out some other ideas...