Sorry to rain on your parade but...
I believe the offset is at least 10ms early.
Might want to add "My Little Sister Can't Be This Cute" to the tags as well.
I don't get these difficulty names.
Tiny:
Using only one type of hitsound for each section (for the most part) of the song seems pretty dull to me. Why not use more to add variety to the beatmap?
00:10:031 (1,2) - I find this jump illogical and largely unnecessary.
00:11:822 (6) - There are no ticks on the sliders before this and that makes the speed change impossible to see coming. You need some kind of warning here. It is easy to imply one by changing the tick rate to 2 and having a slider of 1/1 length or longer before this slow slider.
00:22:792 (1) - Unsymmetrical. Move the leftmost anchor point one more grid to the left and raise the lowest anchor point as high as it can go.
00:47:867 (5) - I find this speed change completely unnecessary and flow-breaking.
Jameskong1's Hard:
HP Drain and Overall Difficulty are set to 4. This difficulty is supposed to be hard, not easy, right? Please raise them accordingly. The other difficulties were a bit lenient with settings as well, but I think it's the biggest problem here.
Again, there is a lack of hitsounds overall, but it's much more prominent here.
00:46:971 (1,2,3,1,2) - Objects here aren't stacked on the slider ends correctly.
00:47:867 (3) - I find this speed change completely unnecessary and flow-breaking. Also, it's unreadable due to lack of slider ticks in this difficulty.
01:27:270 - This would be a more suitable place for kiai time to end. 01:19:434 is too soon.
01:43:837 (6) - Not stacked on slider end.
01:53:911 (1,1,1) - I don't see a reason why these are all on a new combo. Remove the last two.
01:59:508 (1) - Again with the slowdowns...
02:23:911 - Move the kiai end 1/2 forward to match the first chorus.
02:35:777 (4) - Not stacked on slider end.
02:38:911 - Seems more suitable to end kiai time here.
03:21:449 (1,2) - Seems odd to me that you'd place that there considering the overlap with the previous sliders.
03:29:061 - This is a breakdown of the chorus. It seems blatantly wrong to use kiai time here. Leave it off until 03:43:389.
03:43:389 - Soft hitsounds are used here which doesn't match the other choruses. Very odd.
Large:
Again, more hitsound variety would be nice.
01:24:807 (1,2) - I think the spacing between these two notes should match that of 2 and 3.
01:59:508 (6) - Seems pointless to have a silent ending here.
02:38:911 (1) - Soft hitsound on the end would be nice.
Neko:
Once more: variety in hitsounds would benefit this.
I think this is too short. Closing at the bridge like Large did wasn't so bad, but this is insulting to a new player. If they wanted to play a TV Size version of the song, they'd download the TV Size map.