It was painted using only 11 colours.
11色だけで描きました。

An NFT auction of this painting will be held from 7 April at 21.00 hrs (JST) to 14 April at 23.30 hrs (JST).
It comes with bagged content with a video showing the erasure of this painting for holders only.
Auction in Japanese yen, starting at 7000 yen.
↓
https://nft.hexanft.com/nft/issue/VYxaEOA1 



【Process】
https://youtube.com/shorts/Ua04IxtU6tE?feature=share