00:39:164 (39164|6) - why such notes are not double? In the EZ, the bell represented as double, and i think it'll be better for at least make it double every 4/4 on this difficulty (2/4 will be better just like EZ, but it think it'll make this section too dense).
You already make similar pattern on the beginning (00:01:762 (1762|0,1762|2,1956|4,2151|3,2346|4,2541|1,2736|4,2930|2,3125|0) - ), so i think it won't make this diff that harder
00:52:995 - I suggest to add note to represent the synth so you will have a 1/2 patterning which is improvement from EZ difficulties, I have checked that every NM Difficulty except 7K is mapped with only 2LN (1LN in 4K) which I think it should be buffed a bit so it becomes advancement pattern from EZ Difficulty also it improves your Diff spread.