WOW Kazuya!
This has gotta be the best thing I have seen from you, and dude does it rock. I couldn't stop a smile at looking at the level of the art even in the perspective sketch, and after looking at the newest step so far, with floor reflections and neon lights, I just stared. I don't know if you are going to make this as detailed as possible or sketchy, but I sure hope it will be really detailed. It seems no elements are missing, but I think the closest rightest ceiling flag/flap looks a little off. I understand that you make the perspective a little bent, like if it's watched through a lens, but I think the flap still looks a little wrong? Other than that, I see nothing wrong. Just remember to check the perspective and geometry before getting to far so you won't have anything you won't like. And as with Gil, It sure inspires me to do some perspective thing myself.