A few of the artists created 3-D art work. These works have been created to correct for the perspective. This requires the viewer stand at the front of the art piece at the designated view point marked on the pavement. Here is one image of Audrey Hepburn that the artist is completing.
Here is one artist, who I have dubbed “The Gatekeeper”, busy at work.
Here he is working some fine detail.
At last, the artist had to get uP; I could see his face and made this image as he was chatting to a bystander.
Checking on the perspective… And some more footwear!
In the shade, this hat was no longer required.
This lucky girl got a high viewpoint.
Enjoy.