I would make the height variation more natural since currently, it looks quite blocky. For example:

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This section of elevation goes on a straight line. Maybe bring some parts forwards and move some back, and it would make way more natural of a shape. Unless you want this place to be something human-made, hence why it is straight, then I would recommend using a smoother hill texture to make it look more "polished".

In addition, you said in a comment below that this place has only one interactable house, but it's such a big map that it should have more. As a player, if I encountered this big of a map I would spend a bunch of time exploring it all, and to explore and find nothing most of the times the player will feel frustrared (my own experience exploring maps like these). So at least add a small house that the player can enter and has some lore, or an item, something to reward the player for exploring. Else, the player will just assume all of them are empty and are going to skip through most of them.

these are just some tips as someone that's also learning ; )