Front View: It might be a little hard to see, but there is a triangle shape in the middle of the bodice. There seem to be darts or pleats that follow the shape of the neckline down the bodice.
Side/Back View: The bottom of the sleeve doesn't seem to cling to the arm: it is a little open. You can't see the back opening well in this picture, so I included a better picture of the back.
Back View: Here's the better picture of the back. There doesn't appear to be visible buttons; I would assume that it is closed with hooks and eyes.