Just from the snippet that we see, I think it is going to be great. It seems to have some story which we all have been wanting for a long time. The CG is top notch. The fast moving train CG contrasts the slow and pause in the music The color tone is too dark and has too little contrast for my taste, but it fits the image of the song really well. The guy really gives it his all. Well, it is his chance to show the world what he can do too, so he will not let us down.
Now my joke. They can just ask
Fukuchan's grandfather for a real train [that Fukuchan might have inherited from her grandfather] to shot the MV without CG. I am sure Eripon can jump across the train car.