My first mod post! 
Some suggestions, feel free to ignore them!
Since I'm still brand new to modding.
Normal and Easy was really well mapped, and I loved your sliders!!
[Hard]
00:15:363 (4,1,2,3) - Make (4) follow same pattern as 1,2,3 and maybe place repeat sliders like this?
Then for the rest that follow the same music pattern, use similar spacing, at the moment it feels kinda bland.
Another idea is to take the second repeating slider and changing it to hitcircles
something like this
since its 4 repeats using the exact same slider each time. This is just some idea's I'm throwing at you to remove some of the repetiveness
00:53:352 (4) - Tweak the slider a little like this to make it not touch the prev slider
360,144,53352,2,0,B|424:112|487:145,2,128,2|2|2 < slider code
Well thats it. For a new modder like me, I cant really find anything wrong, all three diffs are mapped well, and my suggestions for hard are just some of my idea's I think will make it even more fun to play.
Good job!

Some suggestions, feel free to ignore them!

Normal and Easy was really well mapped, and I loved your sliders!!
[Hard]
00:15:363 (4,1,2,3) - Make (4) follow same pattern as 1,2,3 and maybe place repeat sliders like this?
Then for the rest that follow the same music pattern, use similar spacing, at the moment it feels kinda bland.
Another idea is to take the second repeating slider and changing it to hitcircles
something like this
since its 4 repeats using the exact same slider each time. This is just some idea's I'm throwing at you to remove some of the repetiveness

00:53:352 (4) - Tweak the slider a little like this to make it not touch the prev slider
360,144,53352,2,0,B|424:112|487:145,2,128,2|2|2 < slider code
Well thats it. For a new modder like me, I cant really find anything wrong, all three diffs are mapped well, and my suggestions for hard are just some of my idea's I think will make it even more fun to play.
Good job!