⚫️❓👻

#unknown entity #mysterious being #dark presence #ambiguous figure #demno #shadow being

👁️🧊🔄

#necker cube #optical illusion #visual perception #ambiguous figure #wireframe cube #perspective shift

👨‍💼🤔❓

#unknown man #mister who #ambiguous figure #bejo name #vague identity

🐇/🦆

#rabbit or duck #either or #ambiguous figure #perception test #visual ambiguity #jastrow reference