Leave what you see in the comments section.
This is again a picture riddle that went viral like the blue/red dress riddle.
Some see it immediately and some took days to see it.
Do you see anything in the red circle?
If Yes, how long did it take you to see it?
Once you see it, share it with your friends on Facebook and WhatsApp and see how long they take to see it.
If your answers were Horse, donkey or ass you were on the right track.
I have marked in the image below; (Sorry for the shabby drawing work ;))