die-cut sticker, aerial view of a sunken courtyard football field surrounded by a low concrete perimeter building, bamboo courtyards nested around the field, tiny walking figures, green basin spatial feeling, hand-painted watercolor, studio ghibli inspired anime background art, soft aerial perspective, warm natural light, pastel clouds above roofline, nostalgic 1990s anime, thick white sticker border, isolated on flat white background, clean centered composition