Down the Drain - Shrink Fan Comics

[scidram]

Let it be noted that ideas CANNOT be copyrighted, only works put in a tangible medium. So though this comic and the other mini-comic depict a woman shrinking in the shower, that's just an idea which has been fictionalized several times around the internet. Unless the "Down the Drain" writer specifically asked the ShrinkFan artist to reference specific existing drawings from a previous interpretation, there is nothing wrong with reinterpreting a pretty general idea.

For example, the following movies by rival studios came out within months of one another:
Armageddon vs. Deep Impact (big asteroid coming to Earth)
Antz vs. A Bug's Life (an off-beat ant saves the colony)
Mission to Mars vs. Red Planet (astronauts find weird stuff on Mars)
Volcano vs. Dante's Peak (dormant volcano erupts)
And the list goes on.

I read it once that there are very few, if any, new story ideas. Whether the execution of this idea is good is a subjective argument (the artwork is fantastic, in my opinion), but the idea is fair game to be used in a new way, as it appears the ending of the comic will go.