botanical watercolour illustration in earthy colour palette of a multicolour tree of life with four seasons. in this hand painted watercolour illustration of a special tree of life, I have represented the four seasons of the year and its characteristic vegetation and flora. the four seasons periods of spring, summer, autumn and winter symbolize the evolution of life, the time of nature that allows everything to flourish and bear fruit, as in our own lives. this tree of life is a tribute to life itself and its teachings.