These three themes combine the dark browns and the light tans of the Shiki-Nouveau-Dust theme combined with the green, orange, or red of the Shiki-Nouveau-Wise, Shiki-Nouveau-Human, and Shiki-Nouveau-Wine themes.
I released this a few weeks ago on GNOME-Look and Xfce-Look and decided "why not make an Openbox version of these themes as well?" While I am personally an Xfce user, I decided I'd try my hand at creating an Openbox theme, and here's the end result, complete with the corresponding GTK 2/3 themes, too.
I recommend the GNOME-Colors series of icon themes for this. Also, feel free to combine these things with any fall wallpaper of your choice. Enjoy! :-)