I'm not sure if there is sharpening artifact, or if the shadow/contrast adjustment is overdone, but something about the post processing on this shot makes it seem very unnatural.
Looks like a watercolor rather than a picture. I like the gentle curve created by the tree limb and the reflection and the stream comes through at a nice angle as well.
Haha, you might be slightly up the creek with this one. There's something strange with the colouring. Is it too much contrast or is it a hue/saturation thing? The giveaway is the blue shadows. Snow is so hard to shoot it's so easy to loose the texture. True, a polarizing filter helps.
Oh this is just beautiful! Really looks like a painting. I enjoy everything about this scene. Maybe just a tad more detail out of the trunks on the left but thats just being picky. Well done.