My two 1/4 scale guys that are part of the "main" 1/3 scale group... Um as in they're in-scale with the 1/3 scale guys given that they're supposed to look like kiddies compared with the others. It probably says a bit about my personality that the two child-appearing dolls in my group are both unimaginably old beings... Um...
...best friends - an angel and a demon.
I'd say think of the friendly "arrangement" Gaiman/Pratchett imagined for Aziraphale and Crowley but the underlying terror of gods and demons is somewhat more explicit for my guys, the world they inhabit isn't as kind, and that's even taking into account the inherent darkness in both authors' worlds.
My Freddy-2 is from the first run that Dollzone produced (and he's the only BJD I bothered to buy the default face-up for) it's gorgeous, but does mean I'm a little afraid of doing things with him in case I damage it! It's warmer in person but for some reason none of the cameras I've ever attempted to photograph this little guy with seem to be able to pick-up the subtle pinks that DZ used.
Little demonic Freddy-2 sulking.
...And the little angel guy (still need to get around to giving him a face-up... Erm), he's angelic but in the terrifying old-testament sense rather thant he modern happy peace loving choir stuff, more as in the legions of god punishing humans for the most minor 'infarction' of the impossibly contradictory moral code that the abrahamic one-true-god religions espouse.
Actually really terribly, in a perfect example of how terrible a dollieh-owner I am... Despite the fact that who they are is set and decided, neither of these guys have a name yet. Erm... All I know for certain is that the angel definitely isn't Metatron (I can never picture that particular Seraphim as anyone but Alan Rickman thanks to that particular film!) and the demon isn't Lucifer given that I tend to picture either David Bowie or Tom Ellis in that role.