LOL! The painting in question is by French figurative painter Paul Laurenzi. And as someone on Reddit pointed out, you can say “Fat Tits Nun” to the tune of “Black Hole Sun” and it fits perfectly. You’re welcome for this being stuck in your head for days.
The Madonna with the Big Boobies?
By Van Clomp?
It does look a bit like Helga.
Van Cleavage
I came here to say The Fallen Madonna with the big boobies by Van Clonp