Leaves turning crispy golden, red, and brown, but still sprinkled with a few green leaves. Sunshine coming down through the trees shining off the leaves making them more vibrant.
Cool air blowing making the branches sway. Not enough you be cold but just enough as to where it's not hot either.
The ground completely enveloped/covered in leaves like a blanket crunching under your feet, making everything seem different than in the spring where it's nothing but green.
And then the leaves that are still on the trees light up against the sunlight making a wonderfully beautiful golden canopy as you look up through the trees to the bits true blue sky peeking through, matching perfectly against the color of the leaves.
Fall/Autumn is my favorite of all seasons, and this right here is one of the perfect pictures depicting that season.