Hmm. The Atlas V uses the rd-180, which is better resembled by a frontier. The centaur is narrower than the CCB. The aero skirt is more rough, with no smooth transition to the centaur diameter. Even if I ignore the scale issues (believe me, it's hard) it should still at least look like an atlas V. I'm just pointing out stuff not-scale-related. Only visual stuff to make it at least look alike.