I didn’t know that my At Night Wallpaper had been included in KDE 4.3.1 until Rajko Matovic, fellow openSUSE member, told me that it was included in openSUSE 11.2 Milestone 6. So I checked that and yes, it was there in desktop settings/appearance. After that, I checked what package provided it, and found out that it was included in kdeartwork4-weatherwallpapers. What a surprise! 
BTW, I took that picture last summer in Colmenar Viejo, Castile (Spain). If you want to see other wallpapers made by me, visit my profile on KDE-Look.org 