First of all: i'd like to remember you that this song was already done, but yours is the short version, so I don't think it's a problem (but wait for a BAT).
Second thing: make at least another difficulty.
Then, timing is all wrong, fix it with these:
BPM 164,06
Offset: 300 (maybe not the best, but very close. I can't test it right if the map isn't re-timed, but fix this later is easy)
Finally, i've to say that i feel you can place the beats in a good way, but please use a stable spacing.
Some examples:
00:51:45 (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16), 00:56:50 (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23), 01:02:33 (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15), 01:07:86 (4,5,6,7), 01:11:84 (3,4,5), 01:14:34 (1) and other minor ones.
Fix and i'll take a look again ^^