When I first saw these photos, I did what anyone would do... laugh. This very effectively illustrates an incredibly valid point regarding copyright law. Just because you made something does not mean you hold the copyright to it. In the above example, Spiderman was created by Stan Lee and he holds the copyright on images of Spiderman. The first image would be a derivative work, meaning that it is not completely original but rather is derived from some other work, i.e., Spiderman. If the first artist truly wanted to create this work and not be liable for copyright infringement, he would need to obtain the appropriate license or fall within one of the exemptions of fair use.
To put it another way, you need to own it before you can Own it.