These days cтан refers mostly to the realm of poetry and presumes a lithe body (slender build ), probably a wasp waist, and attracts listener’s attention to the waist; if your add a certain diminutive suffix to it , the word gets dirty. To avoid unnecessary connotations, you might want to use phrases подчеркивают вашу фигуру as Lena already suggested or подчеркивают ваши достоинства (always in plural) instead.