I struggled to see what body shapes it would flatter (badly doens't flatter those tall skinny models) but I can see how it suits OP. I don't like the belt, it breaks up the dress lines visually, but I suppose you see the belt least on the black version.
i wonder if it would work well on the larger of nork with a tum they wanted to de-emphasise. The poofy sleeves & collared wrists would drive me batty. Glad you like it, though, OP.