I think the "angled" shot (I don't know the word to say that the photo is not horizontal) gives nothing more to the photo. A graphic subject like that should be (at least for me) the more symetric possible. Colors and contrast are good.
On the second, the door frame is bad placed in the mirror, for me, and the B&W treatment needs more contrast and luminosity.
For the third, I'd seen the bird less centered. More on the right, and more or less high (depends if you prefer to "open" the picture up or down)
The fourth : Hehe, nice cake

The faces in the background visible through the glasses are also a very good idea.
The fifth is no interest for me : too much hot spots, and no real subject. You should have done a more "macro" view (french term, maybe also english, which means very near photo)
Nice picture, but there is too less contrast. I prefer the shawdowy corner up left, and the litten one down right.