after we rechecked your map many times we came to the conclusion that we are going to give you some general advice until the map is in a better state of quality.
It is like this, because in our opinion your map looks like a toothpick without the spiky sides you know? In order to get a better quality, you need a few more mods, but we're sure you can handle this. Let me give you some example to make things easier for you, what you should focus on!
There are so many blanketing errors I`ve seen in my first check and many unpretty Sliders
00:30:814 (1,2) - Here you could use a other shape of slider cause these small sliders actually don´t look fine
01:02:988 (2,1) - Here you could try to stack the 2 and 1 for example for massiv flow
00:23:857 (1) - All these Sliders have such an unnoticable curve. I would usggest to make them wether straight or curvy
00:04:944 (1) - Here you have a really silly looking Slider. Try to avoid such an unnoticiable sharp turn
00:55:162 (1,2) - Tis overlap there does not look good
00:03:314 (1) - Uhm yeah... who`s supposed to get that with 300? You can´t make a note on a blue and then with this spacing... no one will catch it correctly
00:21:248 (2,1) - This overlap does not look good
00:36:683 (2,3,4,5,6) - This curve just don´t look right
Konei and Momochikun have already modded your map and after you got some more mods, and you think your map is in a better state, dont hesitate to ask us for another opinion!
Until then, good luck, you're on a good way.