Over the years of posting here on AM3, many people have commented on the greens in my photos (some like them, others don't). They are not the product of post-processing. This photo, for instance, is straight from the camera.
In part, it's my Nikon's love of green, and in part because I usually shoot with a polarizing filter. And I have adjusted the WB to try to capture the colors I think I see when I look through the lens, because in my own photos I like to have a "natural" look.
But there is also, I think, a special quality to the greens in Japan that I haven't found in traveling to many other countries -- just like the way the quality of light differs from one place to the next. Perhaps I've just invented that in my mind. Even so, today is a celebratory symphony of green on a rainy day.