What to do with your hands
Unless we watch Americas Next Top Model religiously, when posing, we just do not know what to do with our hands.
Yes they are part of the images and might as well use them as part of the composition.
My solution: (for almost every pose) Touch yourself.
Play with the hair, rub the tight, grab the edge of the underwear, fix the floppy thingies from the garter, hold a strap, show me your engagement ring. And try to do it slower than usual.