modern art at the youngest level

When I first saw this painting I thought perhaps it could have been painted by Helen Frankenthaler or by Mark Rothko or another great Abstract Expressionist from sometime in the 1950s to 1960s.
But in reality it was painted in 2014, a week ago by a Kindergarten student at Naperville Classical Academy where I teach art. Although this 6 year old was painting with much concentration and deliberate intention in his choice of colors, we could call it naive or primitive art. I was delighted with the result.

Three of my favorites by Mark Rothko here:
And one of Helen Frankenthaler's soft floating colorscapes: