I agree with Wendell, very nice colors in the sky, and I do like the silhouette of the tree. The only suggestion, just my opinion, would have been to show more of the sky with the tree forming more of a frame. If that would have been possible. Very nice though!!
The colours are nice but not quite deep enough. The tree is over dominant. A crop from the top, down to just above the darkest colour band going through the branches, and another in from the right border to the skinny tree between the two larger limbs, will give far more dominance to the lovely colours.
Clone out the telephone wire and the tiny tree tops at the bottom left, and you have a feast of colour, with a barren tree to compliment the overall image