I don't think I got everything, but after one quick lookover:
* Page 21 - Misty should say "Realized what?" to match Red's word tense.
* Page 28 - Not sure if this was a change in the translation, but Green said something different in Chapter 13 (
https://mangadex.org/chapter/4b209c49-017e-4b8e-8dac-e87252460176/24).
* Page 36 - One of the speech bubbles isn't filled in
* Page 37 - Thought bubble left empty
* Page 39 - For some reason used "Lorelai" instead of "Lorelei"
* Page 44 - Used "Laprus" instead of "Lapras"
* Page 48 - Not wrong per se, but I'll leave it up to you if you want Daisy Oak to also call Red's mom "mom".
All other stuff I've seen are simple punctuation (i.e. not ending sentences with periods) and omitting words (ex. a few instances where "it's" would fit), though I didn't do a thorough lookover, but all in all this was a fun read and congrats on working on the official English release!