The trollface is from a 4chan comic. The creator posted it to DeviantART too, but it's not really "from" there.
http://whynne.deviantart.com/art/Comic-Trolls-98357844
There are a few similar comic artists. Notably 3-Angled-Blue, who drew some amazing MS Paint comics that are slowly being made into rage comic templates.
Also, the memes that originate elsewhere are still made popular due to 4chan's influence. e.g. "trollface" apparently comes from deviantart but is commonly used in rage comics (I think).