I've had this wallpaper sitting around, waiting to be finished since... Um, sometime last year ^^; so here it is, finally!
I painted this all on SAI. It isn't particularly neat, but I was mainly using this as an exercise in getting used to the tools. I used this screenshot from the end credits of the anime as a reference. I didn't really stick to that colour scheme though, ahaha. I know Sawako doesn't have ginger hair...
Bokeh brush from Obsidian Dawn.
Bokeh texture by asphyxiate stock on DA.