I think it's very pretty. The colors in the sky are so soft and light; very wonderful. The lake looks good too, but I think it looks more like it's frozen than a lightly moving liquid lake. Unless it was meant to look frozen; then it's good. :) But I think to make it look more free-flowing, you should not make the reflection look so neat and straight, and also add just a few darker tones in the water. Good job, though. :)