Im assuming you know that you have to have at least 2 difficulties to get a map ranked so make an easy difficulty that is around 3 stars and anything else you want to make.
use 7759 for offset, its prob not perfect but it will work better (don't forget to resnap all notes and go through and check for errors)
Put source/tags if possible
I would increase circle size by 1
need a preview point (under timing)
decrease overall diff and hp drain by 1 for a hard
remember to skin the other 300 and 100 (when you finish a combo) or else they stand out too much
Hard:
Use ctrl+shift+A to check some of your errors
01:02:259 (1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6) - make this part more interesting, not just repeating over and over
01:30:009 (7) - make straight
02:06:005 - this break is too long and isn't needed, map some of it
02:23:259 (5,6,7) - spacing
02:27:259 (5,6,7) - spacing
02:31:509 (6,7) - spacing
03:14:440 - again this break is way too long and you can map most of it
all the small breaks at the end get annoying and I would try to map some of them somehow
I would try and align some more of the notes and make some patterns with them as some are just randomly placed
