Leaving Home Theme really is a perfect piece to me. It sets a good mood.
All of them do a great job of being a good game soundtrack. It conveys a mood and fills out the world, but with a smaller loop, thank goodness it doesn't have a super defined melody that would become annoying soon.
Only criticisms are that the town shop theme doesn't really sound like a normal shopping experience. Did you mean it to be battle music? Do you get anxiety in a store? and that the home ones fit together well and the town shop and battle music fit together well, but this definitely feels like two different games.