The real gem in that image is the speckled rock from Bitcoin Beach in El Salvador!
The art work is mosiac.rocks ... found it on Twitter a while ago, but not privy to that platform anymore to confirm ... this looks like artist though:
Discussion
I got one of those rocks from a guy who decorates them in El Salvador. Neat guy. Im looking forward to going back with my family.
Beautiful country. Going to relocate there soon 😎
The rocks are everywhere on that beach and surrounding towns/villages ... Apparently in the rainy season they roll down the rivers en mass ..