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In 5 days it'll be SquChan's birthday! Show your appreciation by creating a tile for her birthday card! Submissions must have image dimensions that are a multiple of 200 (200x200, 400x400, 200x600, etc.). SquChan said that she appreciates handmade drawings more than edited images, even if the drawings are shitty, so break out your MSPaints!
As for submitting it, I have access to the birthday card Twitter account and Shyrei seems pretty active in her art tag, so I think sending it to her there would be the best option