I'll just make this quick note right now: add a BG. Also, more hitsounds in Hard (the only difficulty I've scanned over so far). I just wanted to make these points noted right away. Expect a more detailed mod post very soon.
Just looking over each one quickly, there's nothing major to note in design flaws, etc. Just make an Easy.
I'VE BECOME SO BUBBLE I CAN'T FEEL A STAR THERE BECOME SO CLOSE TO RANK SO MUCH MORE AWARE I'M BECOMING THIS ALL I WANT TO DO IS MORE MAPS LIKE THIS AND MORE MAPPERS LIKE YOU
All difficulties: -02:01:178 - Timing > Set Current Position as Preview.
Easy: -00:16:40 (3) - Shorten by 1/2 a beat. -00:51:63 (1) - I'm not a fan of this spinner being here. I feel like 00:51:178-00:52:769 could have something different and not an awkward-feeling spinner. -01:12:76 (4) - Whistle on the endpoint.
Normal: -00:51:63 (1) - Finish goes here. -00:52:08 (2) - New Combo mark goes here. -01:05:26 (1) - Finish goes here. -01:18:67 (3,4,5,6) - Finishes on all of these (in 3's case, just put it on the endpoint at 01:19:133). -02:13:67 (3) - Remove the Whistle. -02:18:22 (3) - Whistle goes here. -02:22:54 (6) - ^ -00:55:15 (1) - Remove the New Combo mark. -00:55:49 (3) - Add a New Combo mark. -02:04:24 (1) - Remove the New Combo mark. -02:04:58 (2) - Add a New Combo mark.