You mention this is an experiment with an "ultra wide lens". I'll admit I don't know too much about the technical workings of cameras; is it the wide lens that allowed you to capture so much of the trunks as well as the canopy here? It is a well balanced, well framed shot. For the colors, parts of it seem beautiful while others feel a bit 'off'. I think the depth of color is good, but the use of PS might have thrown off the natural tones a bit.