Opened in CS3, used Graduated Natural Density filter - Nik Color Efex, which darkened the top and lightened the bottom of the image.
Smart sharpen
Resized
Color Contrast in Nik Efex, which is a duplicate layer like curves. It adds more contrast and emphasizes the colors.
Bi-color filter in Nik Efex.
Redfield Perfectum for some smoothing.
Saved for web.