I wasn’t aware that David Bowie was at one time a Yukio Mishima fan, but this blog cites the following quote from Thomas Newton Howard, accompanied by the image above.
THOMAS NEWTON SEABROOK: “Bowie now read and enthused – in typically vociferous fashion – about art, literature, and classical music; painting, previously an intermittent distraction, became a full-time hobby. Many of his own artworks – which included a giant expressionist portrait of the Japanese author and nihilist Yukio Mishima – hung from the walls of his Berlin apartment.”