Good job for a new composer, I don't know how well you know your music theory but you melodically follow something of your own and it worked. it's simple but I like that you went simple, you can probably now embelish more and more your craft. Things to look for, its very low in volume, don't be afraid to crank it up a notch, not too much though but you have some room. Reverb, you got it on your synth chords but none on the flute its very dry, you can put some in moderation it will really help how it sounds even if its just 10-20% on it