General
Earth - Galaxy - Universe do not scale with Easy - Normal - Hard - Insane
This is why you cannot have both in the mapset, they are unrelated, and you cannot have Earth Galaxy and Universe as they are considered custom names
Universe
00:06:318 (9) - pretty additional here, extra note, would be better to remove it to be a break like 00:04:158
00:11:448 (4) - slider ends on a pretty heavy beat at 00:11:583 which I would think would be better clickable
00:14:553 (1,2,3,4,1) - the shape is odd, 00:14:958 (3,4,1) doesn't really move so well from 00:14:755 (2)
00:27:108 (3,4,5) - unpolished
00:31:428 (2,3,4,5,6) - very very straight, doesn't feel right
00:41:958 (1,2,3,4) - more curve
00:51:813 (1,2,3,4,5,6,1,2,3,4,1,2,3,4,5) - reduce the number of finishes used
00:56:403 (2,3) - align their heads more
01:05:043 (2,3,4,5,6,7) - I don't think they should all be facing left, that makes the direction of flow reset over and over again
01:20:973 (1,2,3,4,5,6,7,8,9,10,11) - could use a better curve
02:49:264 (1,2,3,4,5,6,7,8,9,10,11,12,1,2) - honestly the shape is neither being straight nor curved, it's not really nicely placed
03:01:819 (1,2,3) and 03:03:979 (1,2,3) - do not present the rhythm of the music at that section really well
You use a lot of angular and straight movements, which really inhibits flow, like 04:05:135 (1,2,3,4,5,6,1,2,3,4) - this is one of the main reasons why the whole difficulty overall is not really so polished, because it's very rigid
I believe the streams could look better and more distinct in stream shape, they tend to look disorganised right now.
Good Luck