Hi, please remember you don't have to follow all of my points, some are personal opinons.
[General]
Delete osb-file and do full submit afterwards.
nice diff names ;D
[Phoenix]
OD 9? I would really decrease it to 8.
Also the HP drain is quite high imo, I prefer 7 but you should take also other opinions into consideration. As a result of this high drain you should add maybe more NCs.
00:15:276 (5) - I would move this to 00:15:576 and put in 2 circles 00:15:276. Don't forget to make the slider 1 repeat shorter.
00:16:776 (6) - NC
00:20:076 (5) - NC?
00:20:376 (7) - change this into a slider?
00:33:576 (8) - change into a slider and delete (9)?
00:33:876 (10) - change into a repeat slider and delete (11,12)?
00:44:826 - add circle
00:47:676 (7) - NC?
00:53:676 (10) - 2 grids down and 2 grids to the right (nice pattern imo)
01:21:726 (1,2,3) - why are they so close to (16)?
01:25:026 (5) - this slider doesn't fit
01:28:776 - personal opinion: this pattern is too rectangular
01:30:651 (16,17) - delete
[Firebird]
AR +1 maybe?
00:27:576 (1,2,3,4,5,6,7,8,9) - maybe you should replace some circles with sliders because 200 bpm are really fast
00:31:176 (6) - too many repeats, I suggest mapping some additional sliders instead
00:35:976 (6) - ^ and maybe try this
120,304,35976,2,0,B|104:344|72:344|56:304,4,80,8|0|0|0|8
00:38:076 (4) - turn into a slider
00:38:376 (5) - move to 00:38:676 and make it 2 repeats shorter, add circle 00:38:376
00:39:576 - end the kiai time here (should be the same in all diffs)
00:56:676 (2,3,4,5,6,7,8,9,10,11,12) - put some sliders instead of so many circles
01:20:076 (5,6) - Is this spacing intended?
01:26:376 (1,2) - both 1 repeat shorter
01:27:576 (3) - too many repeats imo, map something instead!
01:29:076 (2) - 1 repeat shorter
01:33:576 - some sliders please xD
[Firefly]
AR 5 please (and maybe OD 4)
Apart from that this diff is fine.
[Firebug]
Kiai time should be consistent in all diffs. Move the inheriting section from 00:40:776 to 00:39:576.
00:29:076 (4) - avoid multiple repeats in easy diffs
00:32:976 (5) - ^ and re-shape the slider , atm it looks ugly; maybe try this
192,120,32976,2,2,B|152:80|112:128,4,80
00:41:976 - add circle
00:43:176 - ^
00:49:176 (1) - I am not sure about this double repeat
00:59:976 (3) - this multiple repeat is fine imo because it's the end of a section here
01:16:776 - the following rectangular pattern looks boring imo
01:22:776 (3) - change this double repeat?
01:25:176 - ^
That's it, good luck!
Edit: star