I spend a lot of time in hotel rooms and have often thought about how I'd shoot in one. A normal sized room is way too small to shoot full length without getting barrel distortion that will add the appearance of more bulk (I'd use the "lens distortion" option in Photoshop to at least partially correct for).
But even doing less than full length more directional lighting would be better. I have one of these and would set it up, maybe straddling the bed even, and use it with super clamps to hold speed lights:
http://www.ebay.com/itm/PHOTOGRAPHIC...item4d2edce835
Get some of these and some duct tape to make snoots:
http://shop.hobbylobby.com/products/...et-2mm-232637/
As for showing curves, besides what JD mentioned on posing, black clothing is going to make it more difficult since it takes light against dark areas to show depth. I'd suggest something lighter without going too bright n white. That combined with directional lighting would show curves better.
Most ladies tend to wear outfits that are just too tight. A loose see through teddy can be manipulated in Photoshop to hide nipples etc. and avoid the "muffin" look. Even the strategic use of the sheet while nude would be good.
I think posing hands is probably the weakest talent most photographers have, I know it's one of my many weak points. When in doubt, have something in your hand (preferably not a breast). Holding the flowers on the bed would have been a better use for them, especially holding one by the stem and covering the nipple with it rather than a "hand bra".
Ladies should study posing I think, not just for photos but for their profession, the same elements that make a good photographic pose make a great first impression when opening the door, or walking into a room full of people.
Certainly a photographer thinks more about posing, but it's like going to a doctor or most other things, being an educated consumer usually means you are a more satisfied customer.