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01:25:169 (1,1) - This anti-jump really did surprise me, maybe add some more space between those two notes?
01:10:320 (5,1,2) - This could use some more hitsounding somewhere I think, it sounds quite dull right now
00:31:078 (2) - Reverse (ctrl+g) this slider? It adds some complexity to the pattern that I kind of like ahah
01:39:108 (5) - Add a finish hitsound on the head of this slider, since you're using them on the preceding sliders, not having one here feels quite anticlimactic.
01:20:320 (6) - Since this slider marks a 1/1 pause before 01:20:926 (1), I would suggest to add an hitsound (like a soft hitwhistle) on its tail. In my opinion it would allow the player not to lose the tempo of the song (and additionally it adds some impact on this pattern).
01:06:381 (2,3) - I wouldn't stack them because the sudden 1/3 change that may surprise the player. Having a proper spacing may allow the player to anticipate (3) better.
00:52:442 (5) - Again, isn't the tail of this slider missing the normal hitsound sampleset?
00:33:048 (1,2,3) - Considering the previous succession of objets (which includes a triple), stacking the objects of this pattern might cause readability issues (it's too clustered in my opinion making this pattern a bit too hard to anticipate properly).
From all this, I believe it would be more accurate to use Minase Mashiro (水瀬ましろ) as the artist and keep the title as it is as Halozy's website takes priority over the others (Toranoana's website doesn't give much information about the song and Amorevole's album was released after Halozy's). Also using "Halozy" and "(Halozy Mix) is far too redundant lol.
Minase Mashiro indeed isn't part of Halozy but of Amorevole. This song was also released later in one of Amerevole's album (TOUHOU☆MASHIBUM, 2017, http://amorevole.penne.jp/touhoumashibum/), sumijun being credited as the arranger (i.e. one of Halozy members).
Also, the song was featured in Toranoana's 東方幻奏響UROBOROS肆 ~dEATHtINYoVERdRIVE~ album (2015, disc 3, song 06: https://www.toranoana.jp/info/dojin/toho_uroboros4/), but no "(Halozy Mix)" either.