This image was adapted from a picture posted to publicdomainq.net. All of the images on this site are in the public domain i.e. CC0. This site is only in Japanese but can be easily navigated with Google Translate.
孩子們玩（＃1）
block、blocks、boy、child、children、FCD H-R、female、girl、Initial ch、male、MeineFavs、play、ponytail、wooden
塊、塊、男孩、兒童、孩子、FCD H-R、女、女孩、初始ch、男、MeineFavs、玩、馬尾巴、木
資料來源：openclipart ( https://openclipart.org/ )