Perhaps the easiest way to fix all your special folders, like Music,
Pictures, Documents, Downloads, etc., restore their special icons, with all
those folders put in the default locations, as well as solve your double
Documents (one of which is your "real" Documents folder, and another a
duplication), is to create a new administrative user account. Otherwise I
fear this could take some time. I have a suspicion that your Pictures
folder is not actually a shell folder, that is, one with a special icon.
(When you right-click on your Pictures folder, and choose Properties, is
there a Location tab? The presence of a Location tab indicates that this is
the "real" shell, or special, folder).
Would it be a hassle to create a New (administrative) Account, and then
delete your old account (after you've moved the files you want to keep)?
Since you've just reformatted, doing it now might be the best thing. Let me
know what you think... I can help you with a couple tips on how to move you
files, so that your special folders don't go haywire.