Hard
00:45:814 (1) - 336|136 for beginning slider, 248|200 for tail slider for a better blanket with circle 2
00:46:945 (4) - 320|40 for beginning slider, 232|88 for tail slider, same reason as above
01:20:573 (4) - I kind of not understand making jump here, keep it at 1.00x distance imo
01:35:260 (5) - Move 5 to 336|44 (or other place that you think it fits, my idea is to make like a curving flow there) , it plays prettier with the flow.
01:36:107 (2,3) - Keep it at the normal distance
01:38:930 (3,4) - Lower the distance , I don't see why this jump should be made, but keep the symetry.
01:51:354 (1) - 176|316 for beginning slider, 156|144 for end slider
01:52:484 (3) - Copy paste from the slider before, and position it properly
01:58:134 (1,2,3,4,5,6) - Not a fan of this pattern ,
https://osu.ppy.sh/ss/2851132 , feel free to accept or reject that one (it's a rough work though , you could make it better)
02:29:780 (1,2,3,4,5) - I like how it works wwwww
02:32:040 (3) - Curved slider works better, adjust it with the flow of circle 1 and 2 before
Remapping hard is not bad, but if you don't want that's my little work for you. There's many improvement on hard diff (try to see newly ranked maps , like in 2013-2015) , and don't afraid if your hard is being too easy, since the song is calm too!
Normal
General: SV = 2.00 is too fast for a normal player. Remap it, because lowering the SV can affect much to your map
And about SV change, I'm not sure if it's permitted on normal
Easy
General: SV = 1.50 is too fast imo , lower it and remap . And I guess don't put 1/2 notes too many on easy.
For example:
02:25:261 (1,2,3,4,5) - You can omit the circle, and 3 sliders works well here
General comment: I feel like this map should be more polished, for easy , usually sliders art is highly appreciated.