I just got this image in my head the other day. I'm not sure why. I imagine Batman finding some kind of clues that lead him to where ever he is now. He realizes the scope of this mystery and contacts Supes who is just arriving. I wanted to keep it simple and clean and show the contrast between these two. If I get around to coloring it I'll try to maintain that approach. I'm pretty content with this one, I think my Superman needs work though.