First of all: Thanks for the replies and feedback. (It's surprisingly hard to get useful feedback. I usually always get "It's good" or "It's alright") so thank you for that!
-I put it on youtube because I view it as a testing ground. When I actually make something good I'll add it to my soundcloud. Though, if soundcloud is the preferred hosting site, I'll use that instead!
-I agree about the cymbal being overpowering and it kind of kills the song. (Something I noticed after listening to it again.)
-I also agree on the generic samples. I'm still trying to figure out sound quality and all that jazz so hopefully this will improve over time.
-Thank you for mentioning the piano part because that was something I was unaware of until you mentioned it!
-Empty space is something alot of my arrangements tend to have and that's something I'm working on as well. (To get a fuller sound without adding too much and overpowering the song.)
-Lastly, thanks again for the constructive criticism. This piece is kind of old and it's the first cover I've ever done. (I usually just create my own stuff...) I knew I came to the right community to get actual advice! lol