The concept and design are very nice. But I don't really like the apocalyptic world/ sword/ robot elements in this. Doesn't seem to fit the reason why Mirai is created in the first place. Maybe that's just me.
Looks like Chun's wish came true (of you in that pose).
I like "my doll is a watch" but it sounds too long. Maybe Musume United? (no, I'm not a MU fan XD)
Oh~ I never even thought of the seiyuu. Oh boy, the seiyuu may give a better or worse image. It's like how Aya Hirano is always associated with Haruhi. I can't even think of a seiyuu to represent Mirai...
At least the Gundam can not only walk, it can spin its waist 360 degrees, open and close face mask, and best of all, propeller attack! Not even a PG can do that.
