Art appreciation

I’m mentioned before I’ve been going through my son’s school books etc as part of a huge decluttering of things I should have done years ago. 
I think they must have studied Andy Warhol, and were then asked to paint ‘in the style of’.I guess he was 8 when this was done.  I must say, I do love it, and I’m going to frame it.  Like me he really wasn’t and isn’t a painter or drawer - so this is really precious. And what a good bit of teaching - he clearly understood the essence of Warhol.