Find the mistake

Thank you for your ratings and /or critiques.

Beauty in simplicity and original

Very interesting concept, and I like the caption. Reminds me of my engineering school days, which ended not too long ago. ;-)

I really like this :) Could wish the upper left wasn't as bright, but I like this idea. And, btw -- the mistake is ever starting to begin with There's a reason why they say *number* of The Beast, and that's because math is satanic. LOL. But you get extra points for doing it in pen ;) Try this again, btw - it's worth persuing

Clever!

Axel,not for me. New idea and original too.