Wow, that's certainly a step forward from the current houses, nice work!
I like the coloring scheme, it could fit the general ambience better, which is quite brown/orangeish.
The current tier 4 house gfx resides here: content/gfx/buildings/citizens/residential/as_stonehouse0
So you can just replace those files to see your ones in action. In a final version, you could create an as_stonehouse1 there and add that to content/objects/buildings/tent.yaml , just next to the line containing as_stonehouse0 .
To me, it's a bit hard to give elaborate feedback without seeing the graphics with content, but i'm positive it's very far from a completely wrong direction
As possibly mentioned before, the wiki contains only guidelines which you can disregard if you feel the need to. Sometimes it's hard to get the different artists to talk to each other, so the best thing to do is probably to try to keep a sense of relation to other graphics, and nonetheless try to get feedback as you just did.
Also, it sometimes helps to show up in the irc channel for a while and make people give you feedback in case it's particularly important.