Most of these are fine IMO except the horribly modern and overly-Western Kaden which makes virtually no sense for a Hoshido character. I'd be more forgiving if he was Nohr aligned.

Scarlet is a good one – actually a name somewhat which keeps the meaning, even if it is again a bit modern in usage as a name.

Some Japanese names have been changed for … other Japanese names. I guess it's phonetic simplicity or something.