I guess I should have mentioned that, I was talking about the tradeable Hween vanities exclusively -- but the Brown and Silver robes should be noted. Brown was obtained from 2012 Hween quest, one of the pieces was exclusive to end game players. I believe it's the same for silver robes, just for 2013 instead.
Edit: reread your updated post, here are some more fixes for you;
You got 2011 Snowman Emblem, but left out 2012 and 2013 Frostmark Wing.
The Dead Leather Boots, Wraith Leggings, blue Ghost Leather and Red Leather Boots were drops from wraith during 2012 and 2013 Hween.
You also appeared to leave out Bleached and Executioners Mask from Hween. These were from the 2012/2013 Packs.
Must have forgotten it in my original post, but you also left out the Avatar pack items.
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