signed and dated 'Otani Workshop [in Japanese] 2019' on the reverse

acrylic on board

48.5 x 48.5 x 4.5 cm. (19 1/8 x 19 1/8 x 1 3/4 in.)

Executed in 2019.
©2019 Otani Workshop/Kaikai Kiki Co., Ltd. All Rights Reserved.