Here's what I saw:
[Easy]
19:345 (3,1) - Spacing is a little inconsistent here, in comparison with the previos gaps. I'd suggest you to move it a little downwards.
1:12:313 (4,5) - Again, spacing is inconsistent. Move 5 to the right, and 1 too, if you want to keep the pattern.
1:12:938 (1) - I'd end the kiai here. It would make things more subtle.
[Hard]
21:532 (5,1) - Once again, watch the spacing. Move 5 a little upwards.
42:470 (1) - It'd seem I only check the spacing xD But I don't. Move 1 upwards a bit to create a correct gap, and at 43:407, move (4) a little to the right (for the same reason)
1:12:938 - Again, I'd end the kiai time mode here.
[Insane]
Let's say, this difficulty seems not insane but unhuman to me.. Maybe you could turn the approach rate down a bit, so it's still playable by normal people xD
So..
24:970 - 17 circles of the same colour?! That's too much. Chenge it every 10 circles as a maximum. Also, this sequence seems extremely hard to me, but there's people able to play it for sure. It's your map, so i'll just suggest that you shorten the gap, put them more next to each other.
34:970 - Same as before.
44:657 (12) - Change the colour here, and undo the colour change at 44:970.
46:220 (1,1,1,1) - I'd undo the colour change.
57:470 (1,1,1,1,1,1,1,1) - Same as before.
59:970 (1,6) - Shorten that gaps!
1:12:938 - End the kiai here.
1:12:938 (1,1,1,1,1,1,1,1) - Undo that colour change!
Watch out for keeping the colour the same for a long time. It should change regulary, and not every 15 circles.
I'm leaving a star because I liked your work, but you have still a lot of work to do! Good luck!
[Easy]
19:345 (3,1) - Spacing is a little inconsistent here, in comparison with the previos gaps. I'd suggest you to move it a little downwards.
1:12:313 (4,5) - Again, spacing is inconsistent. Move 5 to the right, and 1 too, if you want to keep the pattern.
1:12:938 (1) - I'd end the kiai here. It would make things more subtle.
[Hard]
21:532 (5,1) - Once again, watch the spacing. Move 5 a little upwards.
42:470 (1) - It'd seem I only check the spacing xD But I don't. Move 1 upwards a bit to create a correct gap, and at 43:407, move (4) a little to the right (for the same reason)
1:12:938 - Again, I'd end the kiai time mode here.
[Insane]
Let's say, this difficulty seems not insane but unhuman to me.. Maybe you could turn the approach rate down a bit, so it's still playable by normal people xD
So..
24:970 - 17 circles of the same colour?! That's too much. Chenge it every 10 circles as a maximum. Also, this sequence seems extremely hard to me, but there's people able to play it for sure. It's your map, so i'll just suggest that you shorten the gap, put them more next to each other.
34:970 - Same as before.
44:657 (12) - Change the colour here, and undo the colour change at 44:970.
46:220 (1,1,1,1) - I'd undo the colour change.
57:470 (1,1,1,1,1,1,1,1) - Same as before.
59:970 (1,6) - Shorten that gaps!
1:12:938 - End the kiai here.
1:12:938 (1,1,1,1,1,1,1,1) - Undo that colour change!
Watch out for keeping the colour the same for a long time. It should change regulary, and not every 15 circles.
I'm leaving a star because I liked your work, but you have still a lot of work to do! Good luck!