I don't have Miki4, but I'm a fan of the sci-fi or Fantasy style like the wildenlander outfits, Val3dArt or the Xurge3d stuff.  Would be more interested for Miki I guess, if there was a really cool outfit for her like one of those, I would probably grab her, as well, to give her a try.

I could never get Anastasia's face to change expressions without it being scary, so I sort of gave up on her.  I fault my own abilities there...  :( 

I am not a big purchaser, and very picky, so don't take my word on this.  Its just some feedback.

EDIT: ...or you can target a fan-base, like Lara Croft or somethig else.  I just thought of that noticing "Eiryn" in the sidebar, which is obviously targeting the Guild Wars crowd.