i see no illusion..but great wall art...
It could be the classic "The box goes in AND out" illusion, or that our mind make a 2-D shape look 3-D. Or maybe that after looking at it, and then at a white paper, you can kindove see it. It could be many things. (I have 5 or 6 different optical illusion books at my house, all around 300 pages, lol.)
Hrmm, the box shape goes inwards, and outwards.
If you stare at it, you mihgt see the brick mortar lines mova a bit, but thats just about all I can see for an illusion...
can you find the illusion? *looks at tags* nope.
well i mean if you stare at one side it looks like the sides go dianol. like / that. but not that steap. but yee
not much of a illusion just 3-D but it's still cool.