Good day :3
As this is not the material close to ranked quality I'll make single general mod which will tell you close to everything I have to say;
I got to give it to you having only 5 maps under your belt this is not a bad map at all, however it severely lacks variety and contrast; All of that coupled with a random grouping you use makes super disjointed map which quality-wise is not qualified for ranked status;
Contrast - Map should correspond to intensity of the song, even though sometimes song can get samey there are techniques such as overmapping and undermapping which will help you overcome this problem, usually even if you make 8* you want to have parts that are calm and really easy to hit and parts that are really hard to hit and that makes contrast;
Variety - Best friend of contrast as having various patterns in you map makes it fun and not so predictable to play. As straightforward as it gets just look at your favorite maps and try to find how they manage to have contrast and variety in there take all the good elements and apply in your maps;
Grouping/Patterning - In every music there is some kind of instrument playing either vocal, guitar, drum etc. There are sounds which relate to each other and there are sounds which have no relation to each other, that's where the grouping plays crucial part; Better you listen to music better patterns you can come up with if you group objects properly. This is very big topic to fit inside one mod so I'll leave it up to you to find out :3
Anyways hope this helps little bit; I'm usually friendly with beginner mappers and you won't be exception. No offense but modding this will be waste of time for me, instead I invite you to my server and whenever you are looking to get a feedback on your map as long as I'm free I'll be glad to provide it for you pretty much anytime, however keep in mind if you join this server your goal must be to improve as a mapper not to get ranked map. Otherwise I'm not interested :3
Peace :3