I love the composition. The classic(al) canon progression sounds perfect for this theme. I didn’t know a lot of Pokemon music before the Jam, and right now, if I found this tune in a compilation of the Gameboy era OST, I wouldn’t question it at all!
As a nitpick, I think that maybe the mix blends TOO much, if that’s possible. When you are using shorter pizzicato notes I’m as happy as can be, but when using full note values it somehow sounds too legato to me. Maybe too much release time there? Anyway, that’s just me and if anything I’d consider it a “render” issue. It fits the mellowness of the tune tbh.