My DMT was 5-MeO and I didn't get elves or reptiles, just incredibly crisp impossible shapes in closed-eye visuals: Four-sided triangles with round edges turning inside out into hexagon fractals, a circle that becomes a torus which inverts so the hole is on the outside, etc.

From the same batch of psychs, the other dude who took it with me became aware of little green "aliens" that control our bodies like puppets.