Hi Joao, Crazy Krull's band works out of the area above Fenridge Castle. There was a start made on some of Fenridge but it never got too far. Here are the posts...
June Entry: Fenridge Castle
So the terrain has been fairly well defined for it but the Castle could do with some more work. The Castle is a large fortification to shore up the defenses of the merchant route along that ridge line. There is supposed to be some kind of high ranking leader in the Castle but even he defers to Krull about the area to the North which has many Lizard folk in it. Hardy point is considered the last semi safe area in that region and Krull ferries merchants across the fens to the North.
The castle is supposed to have a contingent of cavalry too and the road along the ridge is suitable for horses.
There was some talk about having a cave complex beneath the Fenridge line - maybe even connecting to something under the Castle. This was a cave system which allowed the water to flow across and out into the sea. There was a suggestion that it had some adventurers in it to keep the evil down and plenty of denizens of the deep intent on taking down small boats which could navigate through the caves transporting goods.
Lots of possibilities for whatever you try your hand at. Would be good if you did Bryguys castle shape in 3D tho with more detail