General;
Easiest diff isn't easy enough in my opinion.
Agreeing with the above posters; rename Normal+ to Hard and Hard to Insane.
Normal;
00:37:952 (2) - What is this following? And the same question posed to the copy-pastes of this combo.
01:12:152 (1,2,3) - ^
01:30:552 - Can we not have silent hitsounds here please.
01:55:752 (1) - Eh, I think this spinner is a little too short for the easiest of the set, don't you?
02:21:752 (2) - I don't like the way this immediately follows a slider with only 1 repeat. Could be very easy for a novice player to mistake this slider to be the same length.
02:31:352 (2) - ^ but in reverse.
02:37:552 (3) - I'm not sure this is really following anything; perhaps move it 1/2 forward and delete 02:38:152 (4).
02:39:152 (3) - Similarly, move this 1/2 forward and delete 02:39:552 (4).
Normal+;
00:11:352 to 00:17:352 - The spacing through the entirety of this section is a little odd, to say the least; compare the spacing of 00:12:552 (3,1) to the spacing of 00:15:752 (3,1), for example.
00:55:352 (2,1) - This stack is a little confusing, especially with all the 1/2 streaming that comes before and after.
01:10:152 (4) - New combo.
01:15:752 (4,1) - These antijumps threw me off a little, perhaps you might like to change them?
01:18:952 (6,1) - ^
01:24:952 - I'd suggest mapping through this break; two breaks in a row seems a little excessive, wouldn't you agree?
01:44:152 to 01:50:152 - That spacing again.
02:13:752 (3,1) - This stack is a little confusing, especially with all the 1/2 streaming that comes before and after.
Hard;
I'd highly suggest changing the 0.5x sections to something less drastic - they're kind of hard to read considering you can't see the sliderticks.
That 2x section makes no sense. The section immediately after the 2x section has exactly the same tune and volume and yet it's only a 1x section. I'm not sure why you'd choose this arbitary location for having a 2x section.
01:36:152 to 01:42:352 - I'd like to know what the hell this is following.
I'm not going to pop it. These are mostly suggestions, and ones that I think will improve the quality of the map considerably. If you fix the stuff here, I'll gladly return and bubble it. If you don't (without justification, at least), I'll be disappointed, to put it mildly.
Nice to see some improvement. Rebubbled.