It looks reasonable enough to be wallpaper, but I'm not sure for what civ your proposing it is to be and which leader you are reffering to?
Hm... I'd put some stars on the upper right corner so it doesn't look like a piece of empty space in the leaderscene.
Of course, it's not like people will be paying atention there, but it's a nice detail to consider. Love the concept either ways, I for one know how difficult it is to find decent images of Tehuelche dwellings.
There may be an unexpected surprise coming early next week pending some playtesting.