I found this image a while ago, and thought it almost, but not quite, suited how I see Mataoka:
It's by an artist named Colindrina from Deviantart. Mataoka, at heart, loves to drink with Dwarfs and hang out in rowdy inns: this may be her before responsibilities and world fatigue begins to trip up her mojo. And look--her mug's empty. No wonder.
I will always treasure Vidyala's commissioned piece, however, as this is how she really is:
A good friend told me yesterday that when she hit this magical age number, she realized that she was getting happier and happier each day. Somehow psychologically the things that she cared about, namely, worrying about what others thought of her, suddenly didn't seem so important. Maybe it was her father's passing, and the concept of "don't sweat the small stuff" resonated with her deeply, and fundamentally. One can't "make" these epiphanies happen, but we can lay the groundwork for them.
Mataoka will never age, as I am. Does this mean as a character she'll never get to experience epiphanies of simply not giving a damn at a certain age? Well, she will if I write her narration that way, but otherwise, no. All those epiphanies belong to me.