Also the last one has odd sleeves.
The shoulder seams mimic kimono-style sleeves (the way they are inset. just trust me, because I'd post a picture of a sleeve set in the same way but you still wouldn't be able to tell what I was talking about). It is also ruched (gathered) on top of the shoulder, which creates even wrinkles in the fabric that smooth out across the boob, making it look sleek and also maybe a little bigger? They are open on the side closest to the wrist (as opposed to the neck) like kimono sleeves too (and only tacked where the waist fabric starts; possibly sexy, because you might get side boob, but there is no risk of falling out sideways or flashing), but whoever made it left the outermost edge to create a fluttery cap sleeve.
Cap sleeves are flattering on just about any arm shape, whether they are scrawny and bony or even if they are fat, and the extra volume of fabric used to create the flutter effect makes the sleeve stand out away from the arm below the shoulder which helps make the top of the arm look skinnier.
So basically, it is a flawlessly executed version of throwing lots of things that should make you look nice together all in one piece. It almost never works, either. Whoever did it gets a prize.
Also I like the white one exactly how it is. I was thinking I wished it was in a different colour, but now I'm not so sure. I would probably skip the drape, though.