Photo manipulation to add a fictional character to your pic

"Hi. That's me by the window in my 20th floor office (sorry about the photo quality). Well, I'm also a short-story writer in my free time — my blog is my other life. Right now I'm in the middle of a short-story series about my adventures with Spiderman! And there's a little twist — only I can see him (he is invisible to others), as we go about helping people in difficulty and solving life's other problems. I thought it would be really cool to have Spiderman pose with me, suspended upside down on the other side of the window... :-)"