I like how you have captured the graduation of blue to white in the sky. The orange trees set off the blue nicely, without being too conflicting. The tilt of the image draws your eyes in a unusual direction, from right to left, which gives the image an interesting depth. Since you've used a non-horizontal horizon I think you could even go more extreme with the tilt for a more dramatic image. All in all: good work! I like it.
Very cool sky gradient. I also agree that you could have intensified the tilt of the horizon to get a better effect. Makes me feel like I'm falling sideways... :-)
the gradient really really emphasizes the trees, you've captured the scene very well, and the way in which you've got the forground positioned draws your eyes into the depth and distance of the blue, it helps you visualize the whole scene which adds to the overall quality of the image. And the contrast been the dark and light shades and tones of the colours really compliment each other. Overall a vey good piece of work.