There is absolutely no bridging between Normal and Insane; it's a freaking huge difficulty jump. Please work on a hard that effectively bridges the difficulty gap. At least, that's for the beginning and ending of Insane; please work on making the difficulty level more consistent throughout the map.
Easy
00:35:98 (5,6) - Fix spacing; way too close together.
00:41:23 (1,2) - These are much closer than your other beat pairs. Fix please.
00:45:73 (2,3) - Spacing; Same issue as 5,6 above.
00:47:48 (4,1,2) - Spacing inconsistency.
00:58:73 (1) - Please lengthen to a 3/4 beat repeating.
01:05:73 (5) - Feels too far from previous.
~1:06 - Please put a break here.
01:11:23 (5) - Maybe a slider instead.
01:14:73 (2) - Same as with 0:58 (1)
Normal
00:24:73 (1,2,3,4,5,6,7,8) - Clean up spacing.
00:39:99 (4,5,6) - Clean up spacing.
00:59:06 (4) - Snap to the 3/4, fix spacing near here.
~1:06 - Break
01:10:48 (3,4,5,6) - Move 3-4, 5-6 closer together to be consistence with the your usual 1/2 beat spacing.
01:14:73 (9) - Make a 3/4 beat repeating.
Insane
Make it a regular countdown please.
00:33:23 (3) - Snap to the 3/4.
00:39:48 (4) - Snap to the 1/4.
00:39:86 (5) - Snap to the full beat.
00:46:48 (7,8,1,2) - Inconsistent spacing here.
00:47:48 (3,4) - Move these forward (<- that way on the timeline) 1/4 beat.
Fix your break right after here as well.
00:58:73 (5) - Make a 3/4 repeating slider.
~1:06 - Break
Umm... More spacing fixes.
I highly suggest you become familiar with Distance Snapping... It will be of quite a bit of help in any case on this in fixing up your spacing and for the most part with your mostly-linear mapping, should come out rather accurate for the most part even if used in conjunction with one of the finer grid snap settings.
I look forward to some improvements on this map. It does disappointment a little that you only map part of it though.