I love it when trees turn red in autumn. Yellow and golden is also great, but red is the best! I think.
Also I'm some sort of squirrel or hamster when it comes to collecting things from nature. I need to take everything I find: cones, chestnuts, acorns, autumn leaves, seashells... I've no idea what to do with them, but the urge to collect is really, really strong.
This provides a bit of a conflict with my otherwise minimalistic views.