Yeah the lead in is not so strong but around 0:36 as start the level is kept rolling way better quality at that point than the intro which is not too compelling. Not my normal cup of tea, I would do it differently. As BGM might be ok but for how vivid this is the instrumental is very tame and non dynamic feeling. Not meant to be criticism this is just how I generally respond if something has me squirming in my head. So the main chorus is good but all else is a little weak. 1:10 also gets coherent again. Not sure if not mixing in the cresendos was intentional but definately there are tame parts that should lift more with the vocal if it is intended to support it rather than contrast it. Like 2:00 ? Did it get left flat to contrast the vocal or just ignored the fact it should have lifted with it?