^ (Very late reply, but...) thanks for the comments! The completed game is actually going to be quite a bit longer than the demo, so it could take a while... but we're going to have at least one more intermediate release before the whole thing's done.
Well, I thought we could bring an update here. We've been making lots of progress on the game this December.
First, screenshots!
We have new characters:

And re-drawn characters:
Second, we have a pretty large project on our hands, so could use some help! We mainly have two positions in mind now:
(1) We’re still looking for artists. Graph's doing very well with the character poses (the ones that go on top of background images), but we also need stand-alone CG images for special events in the story. The standard background images also need to get done, but it's mainly the CGs that we want to devote some quality time to. So an artist dedicated to CGs would be especially helpful! (But anyone who could try some CGs or BGs would be great.)
(2) Making magic-attack animations. These are new, and we're going to use these to improve our battle scenes (which currently just consist of showing the characters, naming spells, and playing sounds). To show the concept, here's a spell animation made with a single laser image and Ren'Py code. Unfortunately I don't have a video, but here are four screenshots (going left to right):

There's a wave of lasers going from the bottom to the top of the screen, at slightly varying angles. It's supposed to be kind of like Marisa's "Shoot the Moon" from Imperishable Night. As mentioned, I made the animation entirely with Ren’Py code - here it is, in case it interests Ren'Py people here:
- spell_shoot_the_moon.rpy
- I'm not that proud of the code (the xpos stuff is pretty messy), but just to give a rough idea...
- (4 KiB) Downloaded 98 times
So it’s possible to make these animations with more Ren'Py and less art. You can certainly use more art and less Ren'Py, though, and you might come up with something much nicer with very little programming. For example, you can make animations with Photoshop or GIMP (though I haven't tried this myself). Another alternative to programming is to use a flash-animation program like SWiSH miniMax, and then convert your animation to a series of images to be used like a slideshow in the game. (This option probably offers more than what we need, but some people might already be familiar with using this kind of program, so I'm giving it a mention.)
If you're interested in either of these tasks (art or magic), please mention your interest here, or post
on our forum.