Preview points missing from both difficulties.
00:53:660 is a good place to set the preview imo.
My personal take on this map is that although it fulfills the criteria for starring at least, there are issues with spacing and design that don't affect map elements, but affects the feel of this map, and that for an insane it wasn't that fun at all, because of the somewhat atrocious circle size and spacing.
Normal
00:31:696 (1,2,3) - 1-2 spacing is shorter than 2-3 spacing. Pull 3 downwards so it is closer to 2.
Insane
00:50:446 (3,4) - Make this a slider instead.
00:56:740 (6) - Stack on top of slider 5's end
00:57:008 (7,8,9,10,11,12) - I suggest removing this stack altogether, and similar stacks, but this is only a suggestion and it doesn't mean you HAVE to remove it. I suggest because it doesn't really fit a song of a smooth flowing nature like this, and apparently is only meant to unfairly up the difficulty of this map.
01:04:910 (13) - Relating to the stack and the slider, I think it's very difficult to see the timing for 13. I suggest you create a 1/2 stream, instead of stacking with 12 which makes this very hard to spot.
01:12:678 (5) - I suggest you new-combo this because of its jumpy nature instead.
01:21:249 (9,10,11) - stack 10 and 11 properly behind 9.
Starred once again just because of the tune. The SB was okay, unfortunately it does come across as a bit "weird", but that's a personal comment so no offence intended.