The first one is really nice. The monochrome nature appeals to me, it's dramatic, and I really like how the image completely fills the frame. There are no spaces empty of texture or shifting white, black, and blue.
I also really like the third one. I think that cropping a little off the top, about half the blue sky, would increase the sense of depth, and help keep the eyes from floating off the top.
the first one is breathtaking ... very dramatic, sensual piece ... very seducing
the second one is lovely ... i love the composition ... somehow i think there's too much foreground ... the water/fish pond could be cropped off a little (but dont really listen to me, im not expert at landscapes, or anything for that matter ) .. perhaps photobug and the gang have better insight
the last one is nice, but doesnt speak to me, i dont really understand what im looking at