This animation effect was made with 9va-pi (codepen.io/danjiro/post/9vae-introduction). Making animaton is (codepen.io/danjiro/post/make-animation-from-opencliparts-svg)
桶魚動畫
9va-pi、animation、barrel、clipart、fish、funny、pun、saying、SMIL
9VA最、動畫、桶、剪貼畫、魚、滑稽、即便如此、話、SMILE
資料來源：openclipart ( https://openclipart.org/ )