まほお姉ちゃんが劇場版で着ていた大洗制服は...
#ガルパン版深夜のお絵描き60分一本勝負
#ガルパン版深夜のお絵描き60分一本勝負_20190915

As for the Ooarai uniform that Maho-oneechan wore in the movie...
#GuPOneHourMidnightBattle
#GuPOneHourMidnightBattle_20190915