@ShortStarI dont like them. They are too blocky and very unrealistic. the trees are all the same and its an eye sore. Your first map has a error at the top where the round trees meet the pine trees. I can tell in some cases you are using events to over lap somethings, and or trees when you should be parallax-ing them as it will allow you to use tools to make it more realistic.
Your grass is too blocky, your river, swamp what ever needs depth, your little mushroom flowers look back in the corners of the river.
Over all you should consider parallaxing your maps as they are too unrealistic, make them smaller because as I look at this all I would do as a player is just follow the path.
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From me:
Weapon -> Item -> armor store, two entrances.
I just don't know what else to put on it
Also:
Finished cave
--> The top of the cave has since been fixed -that light part there where it looks wierd