1 never use those basic fl drums, familiar musicians will click off immediatelly
2 synths are good, really good in fact!
3 good job with noise sweep fx but it could be quieter
4 i didn't notice any reverb on anything but synths, you can find any kind of video on how to use reverb more effectively on almost any instrument or drum
5 melody is good but you know not great, kinda needs more tension i'd say

few technical little things, you will figure them all out in an hour with youtube videos, but you already figured out all the difficult things, from here it's gonna be a cakewalk,
and this one is still 5 from me despite little things i mentioned, Good Luck on your next one! :3