I came across a neat tutorial today titled Invisibilia so in an effort to see if I could do it I took this photo and made myself invisible. What do you think of the end result? I think it is kind of neat. You can see some more Invisiblia in the Invisiblia Gallery.
I did make a small error though. While doing the tracing I changed the opacity of the actual photo to about 42%. But when I was done I forgot to set it back to 100. That is why Lisa and the sky seem kind of washed out.