The whole thing
The first level
The second level with the completely necessary screaming pedestrian
The last level, with an AC unit and a satellite attachment
Doc Oc, with what appears to be spider poison in his hands
A close-up of Mister Octagonapus
I did my best to make the "arms" to scale
Spider-man from the back
And finally, the real star of this creation
Fourth Wall Commentary: I knew I had pretty much no chance at winning this contest, and the fact that I don't own any superhero minifigures did not help, so after I started panicking waiting for the mail to arrive, I just whipped up a spider-man in about 10 minutes. The build, took me no effort, and I was going to restart it, but there wasn't enough time left to do much, as I had procrastinated too much already, so it's pretty bad. Almost bad enough that I was going to do something in my personally comfortable micro-scale, but that's enough rambling on from me. And I do hope that the overhang isn't too much for the judges.
Oh Noah, never tell the judges that you think your own creation is bad, it's very dangerous from a psychological viewpoint - they might believe you, hahaha. No, really, I like your custom Spidey and the arms of Doctor Octoplatypus.