India, Oct. 11 -- Optical illusions never fail to fascinate, and one new image making rounds online is testing viewers' observation skills.

Shared on Reddit, the picture at first glance looks like a peaceful woodland scene. Tall trees rise from the forest floor, their branches filtering the golden sunlight. Scattered leaves cover the ground, and a small building is partially visible on the right-hand side. The setting gives off the calm, rustic charm of autumn - but there is more than meets the eye.

(Also read: Optical Illusion: Only eagle-eyed can spot hidden cat in this viral Reddit post in 15 seconds?)

Hidden somewhere in the photograph is a deer, perfectly camouflaged among the trunks and shadows. The challenge is simple: can you f...