I do quite like the "all seasons" tree . This was my first initial thought for a logo (just not a painted style like this) but I'm pretty sure it's been done more than once so it'd need some work to make it original.
The immediate future is orange: Stunning pictures that herald the arrival of Autumn
Maple trees are the embodiment of fall foliage. So-called "leaf peepers" in North America drive hundreds of miles in October to places like the White Mountains of New Hampshire to marvel at the colors of these special autumn trees. I tell you about some of the best types of maple for fall color here: http://landscaping.about.com/cs/fallfoliagetrees/a/fall_foliage7.htm
Thermochromic dyes: Smart textiles: Heat Reactive Jacket by Stone Island, a tracksuit top which changes colour from black to green/ blue once it has reached 27 degrees. The fabric that is cotton nylon with thermosentive liquid crystals that react to heat.