my first thought would be that it's a TV Ending 
cel, but i don't have any cels from the OP/END, 
so i don't know the schematics for them.  the 
only ending i remember from the TV series is the 
one with the chibi Akari's though, although it's 
been a while since i've watched the TV series.

did you win that off of eBay?  i think i bid 
against you for it ^_^...

haruna