This amazing project was made by Fabio Consorti.
Game Developer and Founder of Demon Girl Digital Fabio Consorti has demonstrated a stunning scene that will probably blow your mind. The artist has managed to create an environment and render it to look like a page from Japanese manga. According to the project's description, this scene was made in Unity.
Unfortunately, Fabio didn't share much information on how this scene was created. However, Twitter user Mat speculated on how this effect could have been achieved: