[General]
As said by pimpG: add a background, remove audio lead-in, set a preview time.
To set a preview time, choose a point in the map and go to "Timing -> Set Current Position as Preview Point". Do this in all diffs.
Combo colour: I suggest to put the colours of the rainbow as combo colour. Below you can find the correct RGB for all colour:
Combo1 Purple 128,0,255
Combo2 Indigo 64,0,255
Combo3 Blue 0,0,255
Combo4 Green 0,255,0
Combo5 Yellow 255,255,0
Combo6 Orange 255,128,0
Combo7 Red 255,0,0
Before you submit, make sure that Artist and Title field under "Song Setup" are filled, because due to the new version of the .osu files, Artist and Title are wiped out.
SPOILERHow is it now:
How is it after saving:
[Normal]
New Combo:
00:08:097 (3) - New Combo
00:10:921 (5) - ^
00:16:568 (10) - ^
00:17:979 (1) - Remove New Combo
00:19:391 (3) - New Combo
00:30:685 (6) - ^
00:34:215 (12) - ^
00:37:038 (1) - Remove New Combo
00:37:744 (2) - New Combo
00:38:803 (3) - ^
00:56:450 (11) - ^
00:57:509 (1) - Remove New Combo
01:07:038 (7) - New Combo
01:11:273 (1) - Remove New Combo
01:12:685 (3) - New Combo
02:11:273 (1) - Remove New Combo?
02:12:685 (1,1,1,1,1,1,1,1,1,1,1,1,1,1) - If you put the colour i suggest, remember to respect the proper colour order (Purple ->Red). To change combo colour, click the arrow on "New Combo" and select a colour.
02:47:626 (7) - New Combo
02:50:450 (1) - Remove New Combo
02:51:862 (4) - New Combo
03:00:509 (7) - New Combo?
03:19:744 (6) - New Combo
03:25:038 (1) - Remove New Combo
03:26:097 (3) - New Combo
03:34:215 (1) - Remove New Combo
03:36:685 (5) - New Combo
00:38:803 - Please start kiai from here
02:17:450 - I suggest to add a green line and end the kiai here.
02:35:979 (1) - End this spinner at 02:37:215 - and add a break time after.
03:08:273 - Stark kiai here instead of 02:44:626 -
About beats and sliders i generally agree with pimpG, you should avoid jump or distance snap changing since it's the easiest difficulty.
[Hard]
New Combo:
00:08:097 (5) - New Combo
00:10:921 (9) - ^
00:12:332 (1) - Remove New Combo
00:16:215 (7) - New Combo
00:18:332 (1) - Remove New Combo
00:19:744 (3) - New Combo
00:22:215 (8) - ^
00:23:979 (1) - Remove New Combo
00:28:215 (8) - New Combo
00:29:626 (1) - Remove New Combo
00:31:038 (3) - New Combo
00:39:156 (5) - ^
01:05:626 (7) - ^
01:07:744 (1) - Remove New Combo
01:12:332 (8) - New Combo
01:13:391 (1) - Remove New Combo
01:17:979 (8) - New Combo
01:19:038 (1) - Remove New Combo
02:12:685 (1,1,1,1,1,1,1,1,1,1,1,1,1,1,1) - Same as Normal
02:50:097 (5) - New Combo
02:52:921 (5) - ^
02:55:745 (5) - ^
02:58:568 (5) - ^
03:04:215 (9) - ^
03:36:685 (5) - ^
00:38:803 - Same as Normal
00:49:568 (8) - Remove beat?
02:17:450 - Same as Normal
02:35:979 (1) - ^
03:08:273 - ^
Nice work to be the first map