I love the first two, it's very cute. The second one... not so much, it seems more like a silly picture rather than something for a contest.
I like there 4rth one VERY much, the color is awesome, it looks like you took it with a vintage camera. But the black and white one is just ok... the grayscale just doesnt work here. I loooove the 5th one, the only problem is that my eye keeps on darting between its head because its so white and the yellow tub thing.
the butterfile is simply gorgeous. No critique necessary.
The next one is very cute, but not exactly amazing. For me it's just a picture of a cute dog and nothing more... but at least the dog is cute.
The shell... hmmmm... Well, not my favorite. For me it's very cliche. Something that an amatuer would think is amazing, but i like the idea. I think to make it better would be to make it less blurry, sometimes blurriness works, but here not so much. Maybe the end of the shell clear and the other side blurry.
