MONSTER EATING A MONSTER
The theme for this tessellation is monsters. Monsters are an excellent theme for your first couple of tessellations because they can be any shape-- the weirder, the better. Click here if you want to read more about that, to read about good choices for beginners' tessellation themes, and to see more examples of monsters in tessellation art.
Liron's art is almost a tessellation. It's not completely a tessellation yet because of the white non-tooth parts of the monster mouths: those are gaps. However, Liron could easily make this into a good tessellation by closing the mouths, or changing the gaps to monster tails, or cutting off the tails and instead filling the mouths with smiling teeth, or making the gaps pink so it looks like we're looking into monsters' mouths. If he does any one of those, then the monsters can completely fill a 2D surface without gaps and without overlaps. They would make a perfect tessellation.
There's a big "+" sign on the example tile above, and the word "TRAP" is written on it, because Liron used the Paper Cut method. (Click here to read more about this way of making tessellations. Hint: "TRAP" is "PART" when you start.)
This tessellation repeats via the translation (slide) method. That means the monsters are all going in one direction. I think they want to eat KayLee's dogs, which would turn the dogs into ghosts...and spook the buffalo...and make the gorillas nervous.
Somebody warn Liron, KayLee, Griffin, and everybody else: Dogs are monsters' favorite foods...for dessert, after they eat other monsters.
This tessellation is a clear example of the "TTTT" type in the Heesch tessellation classification system. That means, each tile touches four other tiles (that's why there are 4 "T"s), and translation (represented by each "T") is the only way they repeat.