Hi there!
Okay let's see... Let me first mention that I look for logic and semi-realism in my games and maps so keep that in mind when reading my advice/feedback/critique
Map 1) I really like the overall design, simple but feels like a dense forest...
However I see some fields growing crop near the cave...If this bear you speak of has been living it that cave for a longer time there is no way anyone would go near it to tend the fields...They would be more abandoned by now.
A second thing is the road leading to the west... It leads the player directly to the treasure and seems to have no other function... I would personally have it turn south and disappear into the woods so as to guide the player to the vicinity of the chest but not directly to it.
Map 2) Again liking this one...a lot. Simple, basic but (due to coloring) very atmospheric. Throw in an epic battle-tune there and it'll stick into the player's mind

Only point I can make is perhaps have a few tree-tops or mountain faces just pup-in on the bottom of the screen to make it just that tad bit more visually appealing as now it does seem a bit barren.
Map 3) I'll be brutally honest... I like this one the least. The robustness of the building and color does not fit the surroundings in my opinion. It kinda sticks out like a soar thumb (unless this is your intention then; great job) Slightly changing the color by changing the lighting could already fix this and adding some fallen leaves or branches on the pavement. a banner on both sides of the door would help too.
All in all though these map-designs are not bad in any event and you should take everything I've said with a grain of salt cause I'm no expert either
And if you think they are good and are satisfied with them then they are and you should ignore anyone else's opinion all together
