When we look at a painting, we know there was a painter. It didn't happen by itself. Its only logical. Great video to use for witnessing!
See Video Here
Jesus said you can read the weather signs in the sky. How is it that you can't understand the signs of the times? If therefore thou shalt not watch I will come on thee as a thief, and thou shalt not know what hour I will come upon thee Rev(3:3)