This song has a very mild pacing curve.
00:30:133 (2,3) – This spacing feels a little big. The increase to ¼ rhythm already increases the intensity nicely, why do you need a bigger DS as well?
00:46:480 (1,2,1,2,1,2,1) – There's a lot of cool pitch changes going on here in the melody. There's a lot of opportunities to express these changes with a change in DS which I think would make a nice play experience.
01:39:172 (1) – similar instances
01:26:672 (2,1) – This flow is kind of awkward since the slider direction at the head changes direction very drastically. This has a very strong effect on the player, and I don't see anything in the music it goes with in this overall calm part. Try a rotation like:
http://puu.sh/pvBgg/c91ca82d90.jpg01:32:057 (1,3) – These notes feel unequally emphasized. Is there anything you can do to emphasize (1) more so that the huge change in intensity is a lot more clear? (Can you reduce the DS 01:30:903 (3,4) – or perhaps even consider making a slider somewhere in here?) If you can't emphasize (1) more, than the huge DS change into (3) feels a little too extreme relative to how much you built up, so it feels appropriate to nerf the DS a little (to maybe 6.50x?).
03:46:095 (3) – Why squiggle the bottom of this slider? You reserve the squiggle affect for 1/8 disruptions at 01:14:749 (3) - , so these feel slightly at odds with each other?
04:27:826 (1) – This downbeat is quite strong. Why give so little distance for it? The way it's mapped feels too weak.
04:30:518 (1) – To me, the overall tone of this section of the song feels too calm to support the big change in intensity you're going for, nor does this “drop” sound deserve such a huge change in spacing.
04:44:364 (1,2,3,4,1,2,3,1,2,3,4,1,2,3,4) – Why use repetition in the flow? Starting a new flow structure on each NC feels like it would add something exciting and spontaneous in a similar way the double bass is rejuvenating the song. A similar kind of argument can be made from a broader perspective. This new section of the song is what 04:39:557 (2,3,4,5,6,1,2,3,4,1,2,3,4,1,2,3,4,5,1,2,3,4,1,2,3,4,1,2) – is building into, so new flow structures helps show the radical transition away from the calm section, where as repetition keeps the map calm.
Tl;dr: Sometimes you're too crazy, sometimes you're not crazy enough.
There's a lot of cool, expressive patterns in this map, so even though I don't enjoy the song, you make it nice to play. Good luck!