I'm really glad that you churned this one out.
The start is epic. Like potato salad. ^_^
I'd say you also chose your instruments very well, and you've recreated the overworld melody splendidly.
Throwing in the Spirit Flute's theme from the game in the middle of it all is ten trillion times better than if you'd kept the same thing going for for the whole five minutes. For that you get some brownie points.
The end was satisfying as well. Good job.
The Aaroca Cookie of Approval deems this song; Worthy.