[Easy]
01:20:802 (1,2,3,4,5,6,1,2) - Timing on these is really awkward and i tend to 100 more often than not, i recommend you stick to a more constant rythm here (even if it has to be 1/1, you can always use hitsounds to enphasize certain notes).
01:37:266 (4,1,2,3,4,5,1) - ^
01:41:639 (2,3,4,5,6,7,1) - ^
[...] The rythm doesnt necessarily need to be 1/1 but use something more intuitive, it's pretty hard to predict hitcircles that you dont know if they're gonna be 1/1 or 2/1 (or more) apart (even with a good distance spacing :< )
02:07:622 (1,1,1) - I still love what you did with these sliders =D