okay so generally you have an issue with not knowing when to emphasize on the song (this song is probably too much for new mapper cause many sound brrr). but overall flow is good (just some parts are overmapped, and some parts have kinda wacky flow cause u dont know it yet (lack of mapping Knowledge) but overall good first map!!! go next!! try to map something less complex song wise it might help you understand what you should emphasize in a song!! gj!!
01:45:844 (1,2,3,4,5,6,7,8) - very nice! can be cleaner but that just comes with more experience
01:20:709 (1,2,3,4,5,6,1,2,1,2,1,2,3,4,5,6,7) - this is cool but u need to fix the rhythm of it! remember start your emphasis and white ticks (typically!)
01:20:547 (7) - u can tell here should be your new combo, and if u just removed 01:20:547 (7,8) - and moved 01:20:709 (1,2,3,4,5,6,1,2,1,2,1,2,3,4,5,6,7) to where 01:20:547 (7) is it'll fit alot better