I like the third one the best - I like how the blue of the bench pops against the snow
I like the colours of the first one as well, however, I think that if you cropped the sky out, it might make the image stronger
I am not sure what to think about the second one, If it is supposed to be a cityscape, then I think I would prefer to have the buildings in focus, rather than just out of focus as they appear to be to me. It is definitely an interesting image and it could be either a wildlife shot or a landscape.