If I was to have a guess, I'd say that the gentleman in image #25 is meant to be Cecil Gershwin Palmer from the hit pod-cast, Welcome To Night Vale.
All conventions are now required by law to include at least 10% Attack on Titan Cosplay.
Heheh, pretty much. Wouldn't be quite as bad if all the characters (minus titans) weren't basically the same thing with a different wig.
Also, #25 is Sailor Mercury, not Sailor Moon
...wait, did someone cosplay as Richard from the Looking For Group comic?
At first glace I thought the title was "Steampunk Teddy Ruxpin".
Gallery could not live up to expectations.
The last one is clearly Sailor Mercury, geez.
#12 is Carter from Halo Reach, by the way.