Finished the legend and made a small tweak on the ground level (added some steps at the side door). Here are the castle plans from lowest level to highest level.

Dungeon Level
bluecastle001-02.jpg

Ground Level
bluecastle001b.jpg

Upper Level 1
bluecastle001-03.jpg

Upper Level 2
bluecastle001-04.jpg

Upper Level 3
bluecastle001-05.jpg