Nothing better than to have nature add the correct amount of colors for your photograph. And it is on a day to day basis. One day it's great and the next day it rains and many of the leaves are down and it is entirely a different and not as impressive photograph. So, you have to plan it perfectly and also be a bit lucky, too. But by going at the correct time, it increases your chances of getting a great photograph. So keep notes for future references to years later and it will increase your chances to that one great photograph.