Give us more options for aspect ratio, or even custom ones. I was looking for a ultra wide or dual monitor wallpapers, and it would have helped to have been able to search for 32:9 (i.e. 16:9 with doubled width) to find wallpaper of the exact ratio I needed for two monitors.
I see this as important for any kind of wallpaper search when the resolution is optional. It allows the searcher to find images that fit the ratio with no or minimal stretching,.
