I liked it
Very, very nice. Has a nice chiptune feel to it. The melody is varied enough to stay interesting and doesn't seem discordant at any time. It got a easy, lighthearted feel.
It's rare for me to like an entire song like this for six minutes, but I can't say there was any part i disliked
If there was something you could improve on, I couldn't hear it. Good enough to download and listen to on sunny days.