Ink and pencil
Kai'enne Tyrmerik
Except Penrose tribar you can see two another mysterious figures - Yin-Yang and Metatron's Cube.
Artist's deviantART profile http://kaienne.deviantart.com.
Dimethyltryptamine
The image was found at http://kaienne.deviantart.com/art/Dimethyltryptamine-73034531.