As per your request:
[General]
Aah, what's with all the spaces in the tags? Remove them. Also the "Album:" part of the tag. Also remove "pop" since that'll be the genre
The video is really low quality for 8 megs. Think you can find/make a better one? If you have problems with this, let me know and I'll see what I can find for you.
Your MP3 is 320 kbps: please re-encode it to 256 or 192kbps (192 is preferred, but since your map is so old, you can technically do 256). Once again, if you don't know how to or have problems getting this done, let me know.
I'm not seeing a reason why most of the slider ticks are silenced
[Easy]
00:16:336 (1) - This is way too soon after a spinner for a difficulty like this. Please consider mapping through the spinner, or changing some of the rhythms afterward.
00:22:336 (1) - Hrm, these don't really work too well in an easy difficulty simply because it's hard for new players to tell when it will stop - plus having a note so soon after it will just cause more problems. Please try a simpler rhythm.
01:12:836 (1) - Too soon after a spinner again. Please try to leave 2-3 beats before starting another note for a difficulty this easy.
01:20:836 (1) - ^
02:32:836 (1) - ^
02:38:336 - Just delete this break.
[Normal]
02:06:336 (5) - Maybe stack this with the 6 slider instead?
02:38:336 - Add a note here and delete that break
[Hard]
01:15:336 (2) - That whistle sounds really odd
Some of the stacking and overlaps were kind of weird but the map is okay.
[Insane]
Reduce stack leniency to this:
It'll make some of your stacks look neater such as 02:30:336 (1,3,5) -
02:40:336 (1,2,3) - Really don't like this overlap