This is the second of two "movies" that combine into what seems to be a single project. They stand alone well enough, but both have rather wobbly legs. I wouldn't even call them movies, more like OVA or 2 episode pilots, smooshed together, looking for some financial backing, to put together a complete season. We'll examine this title by itself.
The art is OK in a pleasing steam-punky style. But the biggest knock on this is the animation. It's a complete mish-mash of poorly done 2D and 3D CG that is on the edge of amateurish. This is definitely shoestring budget work. Looks like it was done by a single overworked animator at a 2nd hand workstation with graphics cards that are 3 gens removed from current technology.
The characters and the writing both come off as incomplete. While there are some teases at what might turn into something worthwhile, there simply isn't enough time alloted to flesh things out enough to become satisfying.
The VAs were decent enough, and lent a little credence to this. But it seems the director constantly struggled, with one hand tied behind his back, to make this work. He's provided with too little resources, to harsh on him badly.
I wish we could have seen what better producers could have done with this. But we're stuck with what they laid out, which isn't much. If I had to grade this based on the product, I can't see fit to give it much more than a 65/100 flat D. They did try, but not hard enough.