Just some constructive criticism
For when the chords come in, either make the main melody louder, or silent the chords a little bit. You want to keep that piano dominant. Just some real basic technical shit, but the rest is alright. I guess if you're making this for someone, you can't do too many change ups-- 'cause it does sound a bit plain.
One last thing! That final flute note throws me off, maybe fade it out, or cut it a second sooner.
Other than that, good job! Keep it up