It may not be readily apparent, but you’re looking at a large mural made entirely from Lego (tens of thousands of Lego pieces). One of many on display at the Franklin Institute in Philadelphia.
https://www.fi.edu/exhibit/art-of-the-brick
Photo by the lovely-and-talented Annie, as always.
Intricate
ParkInkSpot 
I can’t draw straight line. So I have much respect for Lego artists. Not the most free form to work with.