this is so nicee! as for feedback i would make both the melody and drums more heavy cuz they dont stand out much
You would tune the instruments and build from there, it's a great example of playing real-life instruments too.
If sampling, a general rule of thumb is to have a chop/sample start at each kick. The melody is or should be an essential part of your song. Or in some cases, melodies work better and differently with drums.