Included in the zip file is 1920x1200 and 1600x1200 resolutions.
***EDIT: I decided to remove the city lights, at least temporarily. I never cared much for how they looked... and so until I can do a better job creating them, I think the picture looks better without it. In the meantime I'll be working on that
You can check out the full, non-wallpaper version of this here