Can't say I'm impressed by the artwork, the designs look kind of childish to me. Not digging Gebel at all, nor Miriam's clothing / exaggerated weapons.
2'5D Is not really justified, as I see it. I bet IGA's getting this project backed in less than 24 hours, and probably we'll see the numbers leaving the 850.000$ goal far behind in less than a week. I think IGA should have been more confident about the founding, and take the pixel route from the start. Anyway, I can live with 2'5D graphics as long as they reach MoF standards of quality.
At this point I'm backing this for sure, but I hope this designs grow on me somehow, or get some more mature approach at some point. OoE was the perfect blend of manga and a more realistic, westen style, both in character proportions and clothes design without all this "Sakura Cardcaptor" stuff all over it.