Wauw, nice remix. Quite some nostalgia here.
It's been a while since I've played PKMN Platinum. Route 217 is one of my least favorite routes, mainly because of the hail.
Anyway, back to the song. It's really well mixed & mastered.
I think the 'attack time' on the instruments playing at 0:02 and happening a few times more until the beats come in is way too little (in fact, I think you've put their attack times at 0). I suggest to rise the 'attack time' to make the pads & strings sound more relaxing, instead of a sudden appearence in the song (which sounds a bit off IMO).
Apart from that, the song's great. 5/5
Hell, this could as well inspire me to make some PKMN remixes. Good job overall.
-- Criminal-23