I think you've got a pretty good "golden hour" feel going here, although I can't say whether or not it feels autumnal to me. One thing that bothers me are the purple accent tiles. Try adding a semi-transparent layer of red or orange over the tiles, and work from there. To keep it consistent, you probably want to think more in terms of relative color. You can create the illusion of purple by using a muted red, or something like that, just like how your muted bluish grays in the shadows appear very blue against the orange and red tones. I've done a quick edit on your photo, to give you an idea of what I mean: