I'm a working editor and most of the submissions I see are rejected because the level of storytelling is amateur. Most of the problems do not...
I suggest getting a good travel guide book with photos.
There should be names for the main characters. Secondary characters could stay with first names depending on the amount of interaction they get....
I'm an editor who has been doing this for quite a while at a publishing company. Most of what I get is not publishable. The problem is not typos...
Separate names with a comma.