Wow, I think the progression of the melodies is amazing, I really like it! The trills are very nice too. For a bit of subjective criticism, I found the timbre of the tom (or snare, I am unsure the kind of drum) starting around 0:56 sort of pokes out from the other drums, that's just a minor nitpick though, and I still like the addition of drumset drums there (especially the crash)! Nicely done!