SCARY CLOWN by Tiffany
Seriously, this creepy clownface is going to give me nightmares.
It's a proper tessellation, though: the "tiles" (shapes) repeat perfectly, without gaps or overlaps. The contrasting colors of adjacentn tiles lets you know clearly where one tile ends and the next one begins. Interestingly, S. R. has chosen to only emphasize half of the tiles, an unusual technique which works rather well.
To make this very original tessellation, S. R. used my tracing paper tessellation technique lesson.