First grade "fingerprinting" painting

I came across a Chinese artist named Xhang Yu who paints large walls
using fingerprints.
The image below is just a fraction of his paintings, but show his patience
and his craft as a "fingerprinter".

The students were given primary colors and white on a pallet
and were then instructed to use patience and control to complete their
fingerprint paintings. I showed the students the image of Xhang Yu,
and discussed that he did not sloppily put finger marks all over the place,
he took his time and created an elaborate work of art.

This student had a little too much fun.

Some students used minimal amounts of fingerprints.

Once the paintings were dry, we used markers and crayon to add
lines shooting out of the fingerprints, and also to connect dots together.