Toad,
This time I worked with selective color and gradient. First brightness in the fields to give light and then curves to make the contrast, with the same selection gave the brownish color with selective color working whites and neutrals.
The color of the sky was given with a gradient I did at the moment with brown and blue, blent to overlay. To make the colors brighter I have another layer with a photo filter in green opacity around 30 blend to soft light.
Curves at the end to give the final contrast to the whole picture.
The only thing I don't like too much is that in this case I worked a lot my transition between field and sky and still I have a little halo. The good thing is that the contrast in not so hard there so it is not so visible.
Matt, I cropped a bit to place the tree in composition but I like your idea. I have never used that 4x5 crop. I tried it and yes the tree looks great and the idea stronger. I was affraid I ended up in a monotonous color picture but still I get a bit of blue of the sky. Thanks for the advice...
Don, I am happy with the position of the sign as far as composition is concerned, what I was not too happy with was the arrow pointing out of the frame. But the idea of going out of the winter landscape/season to... anywhere else was interesting to me. At the end that was the idea I wanted to give...
Thank you all so much for your comments...