MonoMonday: Shadows

I waited too long to find any shadows outside as it clouded over and we had a thunderstorm.  If I had waited a little longer, though, the sun came back out when the storm passed.  By then I had already started playing with indoor shadows.  So here is a sort of optical illusion with forks.  They are actually standing straight up but they appear to be leaning backwards.  I'm not really sure why that is.  I was really just going for the shadows.  Many thanks to 60plus for hosting the challenge this month!