These walls took 6 days to complete; Vhils etched the brick work for his portrait 5 stories high. See some shots of the process here.

See more by Vhils + more by JR.

artists: JR + Vhils
location: Downtown, Los Angeles

images by Rick Rodney and Ian Cox, via Vhils

The way this stencil fits with the lines & texture of the wall is amazing.
From the Bogota Stencil Festival. See Vhils recent work in Moscow.

artist: Vhils / Alexandre Farto
location: Bogota, Colombia