This is a huge creative work!
From the beginning through 3:48, I got nothing to say. Really, that was amazing.
I am not sure what exactly happens at 3:48 until the end. It looks like a complete other world to me. Sure, the melody and ambience and all is really thrilling and looks professional, but I am not sure to understand how that part is related to what comes before it.
Except this, I think that everything, from instrumentation to effects through structure - really everything is perfection.
I am truly impressed. This should get like 10 times more views x)