Well, just do what the title says! Tell us why your signature is what it is:
Why this signature?
Why those pictures?
What do those words mean?
How did you decide what to have as your signature?
And anything else you care to explain about it!
I'll start! At the time I posted this, my signature was meant to be a little picture, made of characters, to represent my current name, HexagonStephen! It's also supposed to look like a Hexagon, in case you didn't notice.
I was going to get a signature made, but I couldn't decide on what it would be, so I just put this together as a temporary signature.
Now it's your turn!