Indeed, cute! But I'm a sucker for sprite art. And using comic cutscenes interwoven with some action/gameplay could be interesting...
Definitely keep us posted, yes? There's been other rpgmaker related stuff in the art section of this forum, so I'm not sure if you want to move this there or what, but it probably doesn't entirely matter. You could probably get some help from the nerd community here on the forums as well, if you wanted.
Is rpgmaker xp the one that allowed scripting in ruby, or was that the one after it... um... vx? It's been a while for me.