Hello Natsu~
Modding as you requested.
Lets see...
[General]
Please change the default skin to "User's Preference." There is no point in forcing players to use the default skin when playing your map.
Your hitsounding is much too quiet. I can't hear it at all. I suggest raising volumes in most places.
If you listen to the song, there is a very strong clap on each offbeat. Because of this, you should have a clap on each offbeat note in your maps. As of now you haven't used any claps.
You use too many finishes. They can get noisy, especially when there is not finish in the music, or the finish is used somewhere other than a strong downbeat or accented beat.
[Easy]
00:08:869 (1) - You need to remove or shorten this spinner because the 00:12:393 (1) appears 3 beats before the spinner is done. This is very confusing for beginner players. In general you should have at least two beats of break time after a spinner to give time for the beginning player to recover.
00:13:803 to 00:22:242 - I don't understand your choice of rhythm here. It's not following the song very well. It's following the off rhythm and feels strange. The gap at 00:14:860 makes no sense. It should be more like this:'
The new combos are on the downbeats (sliders) instead of the offbeats (single circles) and it feels much nicer with the music. Just move 00:13:803 (1,2,1,2,1,2,1,2,1,2) left one beat and fix newcombos.
00:19:410 (1) - Remove finish from head.
00:22:242 (1) - ^
00:34:219 (1) - Remove NC
00:42:664 (1) - This spinner is far too short for an easy difficulty. I suggest removing it and adding circles or sliders instead.
00:46:162 (1,2,1,2) - These rhythms feel quite weird. The slider should be on the downbeat and not the offbeat. The rhythm feels disconnected.
00:49:354 (2,1) - Large spacing increase here?
00:53:608 (2) - This slider isn't following anything and is confusing because the repeat falls on a red tick. I suggest a rhythm like this:
00:52:181 (2) to 00:56:104 (3)
00:57:530 (2,1) - Why this massive jump? This is impossible to read for a beginner. Please stick with 1.0 spacing throughout the map.
01:02:500 - This pause is very awkward. Nothing in the music suggests a pause here.
01:13:421 (2) - Unsnapped slider end.
01:27:149 (1,1) - I advise against ending the easy difficulty with two spinners. New players tend to hate spinners.
There's a lot to work on here. You rhythms are very disjointed from the song. That is, most of the time you have your strong sliders falling of the offbeats and it feels terrible.
[Normal]
Too many new combos here. It's alright to let your combos get into higher numbers here.
00:13:803 (1) - No reason for NC here.
00:16:606 (1) - ^
etc etc...
00:19:057 (1) - Remove NC
00:19:057 (1) - I'm confused as to what this long slider that starts on the offbeat is mapped to...
00:22:242 (1) - Remove NC
00:25:082 (1) - Remove NC
00:33:512 (1) - Remove NC
You get the point.
00:37:741 (1,2,3,4,1,2,3,4,1) - This kind of placement is quite boring. Can't you make something more original and fun?
00:45:106 (1) - This slider is very awkward and is not following the rhythm very well imo.
00:56:104 (1,2,1) - Spacing inconsistent.
01:12:721 (1) - No reason for NC here I don't think.
The rhythms through the kiai time are quite good though.
[Hard]
Again here, too many new combos. You shouldn't new combo in the middle of a vocal verse, like at 00:19:410 (1). Adding a new combo there is just confusing. Think about that all over the maps.
00:13:803 (1,2) - Unsnapped slider ends...
00:33:512 (1) - There are so many repeats on this slider... Please do not do this. The spinner should start at 00:34:926 like the insane diff.
[Insane]
Again think about new combos. There's just too many.
00:50:413 (1) - Remove NC
01:00:618 (2) - Slider is unsnapped. Please snap it to 01:00:559 and have it stack with the 01:00:383 (1). It will play much better.
01:08:030 (3) - ^ Unsnapped.
01:24:338 (1) - Unsnapped slider end
Anyways, I hope it's helpful. I don't like this song.