Even a dumbass like me can see that this Anguissola painting is really, really good. It's worth zooming in on.
Check out the city in the background that fades into the distance, then look at it up close and notice how it doesn't look like a city at all, just smudges that somehow resolve into a city when you see it at the proper scale. And similarly the waterfalls below it.
Check out the way Anguissola depicts the texture of the tablecloth in the foreground, and how she captures the way light reflects off the gold trim on the girls’ sleeves.
It's incredible how the artist can achieve all these textures and light effects just by smearing around paint in different ways.
https://commons.wikimedia.org/wiki/File:The_Chess_Game_(Sofonisba_Anguissola)_1555_(4096x3236px).jpg