I can't wait at all until Marian!
I first heard about it a few years ago when teaser/concept art was posted with a potential piano-based theme song.
The whole idea of a delicate, puppet trying to find her own destiny away from the hands of the puppet master was so sweet and poignant. I really think, despite some similar synoptic links and callbacks to Aquaria, with the creator/Master idea, Mario will take all of the most powerful elements and themes of Aquaria - loneliness, yearning, and run with them in the extreme.
I really can't wait at all.
My fingers are twitching to fanart! xD
The travelling music is absolutely fantastic. I love the musicbox/child's lullaby motif. It really goes so well with Marian's context, much like the flutes did for emulating a watery kind of environment for Aquaria.
Without a doubt, Marian is going to be something truly exception. And I can't wait!