Hello, first thing that cought my attention is timing of the song. I think it's kinda off.
I would change red Timing Point for: BPM=73,00 , Offset=7900 (you can change it in "Timing/Timing Setup Panel(yellow button)
(But if someone more experienced than me will tell you another amounts for it in the future, then go ahead and change ;3 )
You will need to relocate all elements after this change (circles, sliders etc) again to make them in right place.
Colors I would change to fit more to the background picture. (You can change it in "Song Setup/Colors") Something like:
(after clicking combo color there , typing those numbers, that I wrote below, on the right in choosing color window from left to right, up to down)
Combo1=31/227/114/215/190/176
Combo2=22/77/22/71/66/64
Combo3=13/203/93/158/160/137
Combo4=21/242/101/233/219/223
Btw there is helpful tool when positioning circles etc. on the board. On the right of the Editor screen there is: "Distance Snap" button. You can turn it on. Using it you will know for sure that elements are in good distance from each other. (you will see it working when trying to place circle or slider on the board)
NormalDifficulty:
Circle size is too small I think, in normal difficulty there should be 3~4
https://osu.ppy.sh/wiki/Normal. It will be more enjoyable in this way.
You can change it in "Song Setup/Difficulty"
Same goes to Approach Rate, you should change to 5 or below ^^
EasyDifficulty:
I think you should change some options in "Song Setup" too (colors and in"difficulty" tab again). Here you can see what should be changed:
https://osu.ppy.sh/wiki/EasyI hope my modding was helpful ^-^