The Optical Illusion in Doge Leonardo Loredan, by Giovanni Bellini.

When gazing at Doge Leonardo Loredan, by Giovanni Bellini, The National Gallery, #NG189, there is a sense that the depicted image returns a gaze, but this goes entirely against the fundamentals of visual art and, more importantly, of essential human communications – but is it?
This interpretation suggests that Doge Leonardo Loredan, by Giovanni Bellini folds an optical illusion as explained here.

Conclusions: Doge Leonardo Loredan, by Giovanni Bellini, folds an optical illusion. The head of the subject consists of two main areas: the smaller right side and the larger left side. Focusing on the right side of the face leads to the obvious conclusion that the Doge is looking down at the audience. However, changing focus to the larger left side of the face, the image seems to return a gaze. Bellini cleverly powers the portrait of Doge Leonardo Loredan by adding a Mona Liza Gaze Effect  - a gaze back at the viewer - which should have been impossible for this type of composition.

V.2 June 20, 2022 (Proofs)