This was an interesting departure from the original story. Lyra interacting with all the Sinnoh folk was pretty fascinating! Silver had such a tiny part in this story that I forgot about him completely at times; Lyra stole all the spotlight, which was interesting. I'm not entirely sure what the whole Arceus subplot was, and are you saying that the Hiker at the end was a Team Galactic person?, but Lyra's character was fun to watch develop and you certainly seemed like you had a lot of fun writing this.

One night Dawn suggests that maybe all three of them could pile into the same bed, and Kotone swears that if it hasn’t stopped snowing the next morning she’s going to go out anyway, because she’s tired of cards and she’s tired of lesbians and she wants to fix this whole Arceus mess and go home.
I think this is my favorite line because it rings so true emotionally.

Nice work!