This tessellation shows translational (slide) symmetry.
The "tile" (tile = repeating shape) is very neatly, precisely reproduced and fits with all the other tiles perfectly, without gaps or overlaps. That's what a proper tessellation does.
Statues can be any color, and they can be squared off rather than perfectly like a human. So, this picture is fine and good as far as it goes. ..And, it's good looking art. I like the way Isaiah uses pure colors in this picture. But... what's next? Is Isaiah satisfied and done with this art? What if...! Only one of the four sides looks like a part of a head: the face side on the right. What if Isaiah bettered this by changing the outline 'til all 4 sides remind us of face, hat, hair, and jawline? I'd like to see that.