The aforementioned Birth of Venus by Sandro Botticelli was painted in the late 1400s. Italian fashion of this period emphasized a natural waist, and women were expected to have a little paunch. (Thank you Italy. We do so love your food.) Belts hit at the narrowest part of the body. Cloth above was taut over the breast and below it fell free. To mimic this, buy skirts with a clear waistband and get a fit that hits your narrowest spot. The skirt should be the impact item in the outfit.
The 1960s virtually ignored the waist, but the decade also produced a great style of those of us who wish to do the same. The trapeze dress will work on a variety of sizes; just make sure you wear a mini in the style. For a modern take, wear it with killer heels, a clutch and bold lips.
breasts and hips. And don't forget to check out the book that kicked off this idea -- Extreme Beauty: The Body Transformed.