What gave you that idea?

I don't see anything funny or mocking about them. They're just fan-made tributes I found at SHH, Superman Homepage, and the Superman-V site. I think the artists were trying to pay him honor, not to make fun of his death.

My first novel, Wounds of the Heart (http://www.booksurge.com/product.php3?bookID=IMPR02655-00001), has been published. Check it out, if you like.