Art at UWCSEA/EAST (Channel 525)

The arrangment for the Mona Lisa is very simple - some times the best inventions are,
Look closely you can see where some geometric shapes have been highlighted in red. Can you see more circles and triangles?

More shapes makes the picture more "active".
This one is not as obvious at first glance - however, there is a diamond formed in the middle, which is a shape that is well known to hold attention, like the Mona LIsa, but not the same.
What effect does all the circles have on Mt Fuji in the background?