Indeed, the bass is far to dissonant to fit in very good.
Also, some sort of a pad instrument could be used to give more atmosphere to the track, and the piano might to well to have the sustain pedal pressed down once in a while.
The settling at the end sounded pretty good though
Also (I say this a lot lately) the melody is quite repetive; maybe you should alter it. And mayhap even take a break from it alltogether, like Grandma suggested. Or add a "solo" on another instrument. Or...
(You probably get the point; some more variation is very much desired in most tracks).
Also, the bass seems to be playing the wrong tones, or does it just have to great a many spred unisono's applied?
Anyhow, congrats to your first (publically released) song
"I kören hörs de brummande busarna Björnligan och Gondolen"