Body impacts clothing? No wai! Clothes improve your appearance Being fit/toned/tall/etc. improves your appearance So naturally, having both is twice as good as having one. But I'm certain that as someone has said, there are slight variations in weight and muscle that can work for or against someone's proportions/sillouette, though I don't think its absolute and I think like an actor can gain or lose weight for a role, so too can someone interested in fashion gain or lose weight for the outfits they wear (based on what style they're going for, e.g: workwear can look silly on a rail thin guy).