I've been playing some more with CC3 and came up with the following image of Castle Caldwell (Basic D&D module B9). It is based on a revised floorplan that I found online somewhere.
The adventure map:
The castle on a bright spring morning:
I forgot to switch off the text from the player's plan of the area, but that is not too much of a problem. Time to switch to a scale bar, I reckon. I've also just noticed that the trapdoors on the towers are casting shadows so I shall have to move them to a different sheet from the rest of the symbols I used, but overall I am rather pleased with the effect and usefulness for our Labyrinth Lord game. I reckon I am going to get some nicely atmospheric maps out of this package. Yay! Money well spent, and I don't even have to paint it!!
I have produced maps of the interior and the dungeon beneath the castle, but I shall not post those until my players have battled through them, just in case they actually read this blog.