I am not using 9 desktops as such. However, I have developed a few wallpapers that may work on 8-9 desktops seamlessly (continuous/loopable). Please do check the links below.

For The Love of UBUNTU (Ideal for even number of Desktops) [8 Desktops]

Windows Mesh (Ideal for even number of Desktops) [8 Desktops]

Chrome (Ideal for even number of Desktops) [8 Desktops]

Chrome 2 (Ideal for even number of Desktops) [8 Desktops]

Honey Comb (Ideal for any number of desktops) [8-9 Desktops]

Honey Comb Variation (Ideal for any number of desktops) [8-9 Desktops]

Miscellaneous

Making a wallpaper for 9 desktops..... it aint funny . Its a lot of work. Will see if i can do something abt it

Best Regards,