These are some optical illusions that 'caught my eye.'

First picture, [think] - is this possible?
Second - Focus on the dot in the center and move your head backwards and forwards.
Third - Are the purple lines straight or bent?
Fourth - Do you see gray areas between the squares?
Fifth - You should see a man's face and also a word.... (hint: try tilting your head to the right, the word begins with the letter 'L')
Sixth - This is not animated. Your eyes are making the picture move.
Seventh - The instructions are on the picture...

Cool, huh? ;o)