Let us know in the comments if you figured it out.
How many shelves do you see? Trace along them to try and count
When you look at the dots do they seem to move around the image?
Are the red lines straight or do they bend
Stare at the centre of the wheel and then look away, can you catch the wheel moving?
Are the shapes the same size or different?
What do you see when you look at this image? Do you see a bunch of lines, or the letter E
Are the red lines equal in height
How many legs does the shape have, try and trace each of them. How many do you see?