It's an interesting show with a lot of interesting elements thrown into it - definitely has its pretty moments but overall it does leave me a bit confused.
Probably my biggest gripe with the show is the storyline you have put together (or that the music puts together) - I'm not exactly sure what's really going on. With each update on the show, you've provided quotes which I would assume are bits and pieces of a larger story that will be fully revealed and concluded in the final show. Onto the actual show, each chapter also has a story title to it - there is definitely a storyline going on here but I couldn't really make out what it was while the show was playing. It could just be the language barrier and the story is directly told through the music, in which case yea that is going to get completely lost on me and any others that don't speak that language. Once the show concluded, the story did too with the reunion of the twins - I'm not sure who the twins are and what really happened but the story concluded. Again, this is probably a language barrier but if the story is told directly through the music it might not have been a bad idea to give more titles that subtly fade in and out on the corner of the screen to show what was going on for us non-Japenese (I believe this is Japanese, correct me if I'm wrong) speakers. Onto the actual show choreography, there is definitely a story happening here - you had ups and downs and a "climax" in your show (that fire sequence with a single blue effect going off which I'm assuming was to display conflict), but overall it was lost on me because the only bits of information I had to base this off of was the three chapter titles.
Disregarding the story and moving on to the actual choreography here, there are some things that worked and others that didn't. Overall the show and the choreography felt like a very good skeleton for a superb show, but just left me feeling that the show was a bit unfinished when the credits started rolling. You had filled up the forefront of your set very well, but the backline and the left and right of the set were rarely used. The far left and right of the set where you have the solid curved wall was mostly left in the dark yet the camera was panned out to show the full set while all the action, lighting, and effects were condensed into the middle forefront of the set. Adding onto what was mentioned by Kablary, the overall set interaction did get better with chapters but in the end did feel like a missed opportunity. You had some cool interactions with the sideways fans and fountains sweeping out on from the centerpiece and a couple of moments with some lighting on it but that's about it. Overall it felt like it was a first run-through on a show and felt like you had completed phase one of the choreography and were going to go back and add more to fill it up but instead released it. I know this was only made in a month, which is incredible that a 12-minute show like this was only made in a month but no one here is placing a countdown clock on your projects. Take your time and give yourself a critical eye on your projects and if you need to go back and add more or go back and redo some sections, hey that's showmaking for ya! I personally redid the introduction of The Call at least five times before finally landing on something I liked. There's no rush at all and no one will (or should be for that matter) giving you headaches for taking too long on a project.
As for the colors and lighting for your show, it definitely had its moments of brilliance. Your overall color palette was used pretty well, you have your classic blue/green/purple used for build-up and slower sections and then you have your classic red and oranges for conflict and your whites at the end for resolution. There was sometimes a random color used in some sections like a random blue in the conflict section or those fire comet effects you used for the slower/build-up parts, which could have just been used specifically for the story but that was already digressed earlier. As for your lighting, it was used okay, not bad but nothing stellar in my opinion. The lighting took a massive leap in chapter three where you introduced some movement which really added a lot to your show. Would have loved to see that throughout the entire show! Like others have said it wasn't the star of your show but it was used more to support your pyro elements, which is fine.
By far my favorite of all the elements was your water - I thought the fountains were used pretty excellently and the colors and movement of all your fountains was spot on and worked well with your music choice. I would have personally made this show a full-on fountain show with hints of pyro and lighting used to support the fountains. The fountain flowers you had in the center were also gorgeous, maybe you should try making a fountain-only show next!
The last bit that I think is worth noting is the music choice - it was an odd choice for a pyro show. While I'm not a fan of the music choice it didn't feel like a show could have been made out of it. This is why I feel like a fountain show would have worked much better with this music choice - the music had graceful swells that worked better with water instead of hard-hitting beats that are used more for pyro. I know you're probably a big fan of Vocaloid music but it usually just leaves me scratching my head in confusion, but hey it's just not my style or taste in music and if it's something you like by all means continue with it! If you attach a story to an already heavily narrative song choice in a different language, be sure to give the audience some more clues as to what's going on. I think knowing what was going on would have helped tremendously with this show. In the end though if it's something you enjoy making then by all means continue with it! That's what this community is all about, we're only here to help give you advice on what could have been improved for your next outing, but make the projects you like to make!
I'll leave you with yet another congratulations for pumping out another show, especially in such a short timeframe. While I had gripes with the show it is by no means a horrid show - the show had very pretty shots and sections! Congrats on sending out another show, can't wait to see what you plan on doing next!