Oh dear, I've also been trying to find refrence pictures of the new splicer designs as well, but as far as I know (aside from the mask) it's the new Baby Jane model. I haven't been able to find any drawn references, but in this video
(@3:56) you can see the front of the dress quite well (sort of a ruched-halter top, a fallen strap with a slip underneathe).
Oh! and another image from the front: http://image.com.com/gamespot/images..._screen003.jpg