I've paid you the bounty. You were very close.

The specifics of this packing: it is the most compact (known) way to fit 17 squares into a larger square.

. There are many more visually surprising cases in there, too. The above case corresponds to Fig. 12 if I recall well.

EDIT: the picture above was screenshot from this 

science

What does the painting on the wall in this picture represent?

south_korea_ln

I've paid you the bounty. You were very close. 
The specifics of this packing: it is the most compact (known) way to fit 17 squares into a larger square.

You can read more about it [here](https://www.combinatorics.org/files/Surveys/ds7/ds7v5-2009/ds7-2009.html). There are many more visually surprising cases in there, too. The above case corresponds to Fig. 12 if I recall well.

EDIT: the picture above was screenshot from this [website](https://mathshion.com/products/optimal-packing-canvas-print?srsltid=AfmBOophK9uejcz16DPHkap7QU58Vj-PX9GaL3f93DC0kgIKy412thuZ).