Face or a Tree illusion

Is it a Tree or a face of a person? It is Definitely a Tree. what do you thinks it is man made or Nature made? The tree has had its branches shaped so that it resembles a face. It makes an interesting picture and makes you wonder what this tree would look like with leaves on it. and i m confused about the face i probably think it is a face of David Duchovny but i m not sure, if any body know then let me know

Hidden Elephant Illusion

Can you spot the hidden Animal in this illusion, yeah there is an Elephant some where in the image try to find out it.

Circle Size Illusion

The Circle is in the left center is looking small but actually it all the circle is the same

Is this Square is Straight?

Is this Square is Straight? The Square line seems to curve little bit and it also seems like moving.