You know LoP, I always hear you mention that you have a large bust, and maybe you do, but I really cannot tell that from the pictures you post. You do not look like you have a large bust at all...neither in other outfits, nor in this one. Your bust really does not influence the shape of the tunic. You look very average to me.
I actually prefer it unbelted, or perhaps belted differently. I have always found hip belts hard to wear. In most cases, it seems to just draw attention to the hip area and cut you off. Have you tried belting it at the waist?
I have come to conclude that volume on busty figures (which as I mentioned, I don't really think you have) is just a matter of personal preference. You either like it or you don't. I will concede that my voluminous dresses and tops would look *better* on me if I had a smaller chest, but I don't personally feel they look bad either. I'm sure others would disagree, which is why I didn't end up posting the side view of the blue dress. It's too much of a subjective issue and personal preference and I think we ought to just leave it at that.