Number 10 actually looked the least human out of all of them. Numbers 8 and 9 look the most human. I made a theory before that Number 10 was actually the first one created and Number 1 was the last one created. As you move closer to 1, the more Oars-like they look. Number 10 looked far to monstrous and inhuman. The creators of the Numbers overcompensated with Numbers 8 and 9 by making them look too human. Number 7 looks more like Oars than those 3, though he looks more like a yeti than an Ancient Giant. Numbers 4 and 5 look more like Oars than Number 7 does