by Matthew S.
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.
If I offer any constructive criticism, it's this: Below each pair of feet, what's that white stuff? Is that a white hat on the chick below? If it's hats, it should be made to clearly be hats. It's important to know that it's not empty white space, because then the whitespace would be "gaps", which are not allowed in tessellations..