@TheStranger, Thanks for posting! The python is a great metaphor.
I guess the 1 artist is Kehinde Wiley. Still, the next 2 groupings of 3, followed by the following group of 6 comprises about 1/2 of the class. And that 50% one might describe as "successful" to "moderately successful." This ratio seems to hold true for the other couple of schools at the top of the heap.
Though it doesn't seem like much, 50% is a huge proportion to fall into those categories compared to most schools.
So I suppose the shape is probably different as you move down the hierarchy of schools -- with the "mouth" becoming smaller and the mid section getting fatter, and on down to schools where there's a tiny tiny mouth and a fat tail.