Dig the direction you're going with the colors. The orange details are looking nice. One suggestion I have is to think of a different option for the engine color instead of solid black. Having the colors broken up like you have is cool but the engine doesn't fit in too well being a solid black. It's too much of one color in one spot, maybe break it up a bit by having some natural finish on the engine side covers or head maybe. Or use a silver color somewhere on it.