about a compliment color for your car and the calipers where they're silver
...maybe black?? but i deff agree, don't go anything like red or orange or yellow... we'd have to smack you into ur right mind or something.
but black would deff compliment the green and make it stand out a little more, and maybe make ur polished aluminum wheels stand out more... (imo the silver takes away from ur polished rims) but it doesn't look bad, im not doggin ya.
keep up the nice work