Now that I looked, the list of english monarchs gives a striking visual transformation from the stereotypically awkward european middle age art to renaissance
https://en.wikipedia.org/wiki/List_of_English_monarchs
And Henry the 8'th portrait seems to be the first one that does not contain obviously awkward shapes (to my untrained eye).
So in 100 years we transform artistically from kindergarten to realistic portraiture. Pretty awesome - makes the original commment more apt, and my quip somewhat moot.
You could clearly tell that the depiction of the flying bird got better over time, but even with contemporaries you could see huge differences in terms of skill.
His later experiments with style were not an artifact of lack of talent, but conscious artistic experimentation.
Sadly, modern artists try often to skip the mastering the basics and just start to splat color on canvas.