Hey wither great to see you've applied.
My only critique at this point is that the ruins for House Towers seem pretty small for a House that was once a threat to House Stark. At the moment it's more or less a hillfort. I wouldn't worry about it being between two giant castles because it might honestly predate both of them. Timelines are pretty hazy that far back, but the ruins are at least 1000 years old, likely older. Anyway, our map is not to scale so things feeling a little too close together is kind of inevitable. Make cool stuff, don't worry about the density,
I would look to something like the ruins of Urquhart Castle, which was once one of Scotland's largest.
I would love to see some remains of curtain walls, a gatehouse, and you can even just reuse the tower test you've made as part of the ruins.