Internetowa łamigłówka «The city,which is not»

The author is a Japanese artist Ucchiey (Kazamasa Uchio / Masa Kazu Utio). Was born in 1959. In 1979 he graduated from the School of designers and illustrators in Osaka. Between 1999 and 2001 worked as one of the artists known Final Fantasy – The Spirits Withtin.

In the catalog already has his puzzles, for example:
https://en.grandgames.net/puzzle/online/royal_v_biblioteke