I think God is so amazingly creative when it comes to fall. He really shows off. Fall is the time that the growing season ends and the trees begin to go dormant. Now this is all a part of God's plan for the life cycle of a tree. God could have just allowed the tree to go dormant, allowed the leaves to shrivel up and die. But no, He thrills us with a beautiful display of color. Crowds flock to the mountains to see the beauty. Droves of people travel to the New England states to see the patchwork of nature.
God could have designed the leaves to dry up and fall off the trees, He could have made the rain without the gentle sound, He could have made the ocean without the sand, He could have made the winter without snow. He could have made people as adults, not as cute little babies that grow. He could have made full grown dogs, not just puppies. But He chooses to thrill us with His creativity, to bless us with His beauty.
"For since the creation of the world God's invisible qualities -- His eternal power and divine nature -- have been clearly seen, being understood from what has been made, so that men are without excuse."