I really want a lovely floaty dress (ideally midi length as I always look a bit drowned in maxi dresses) but can't see any that would work with a large bust (34F) which also means I want straps that hide a bra, so not shoestring or strapless. Something bright, not black or navy. I want to look sexy but I am 49 so nothing resulting in bits of flesh hanging out! Suggestions please!