Three Douglas tartans! I have died and gone to heaven! Gheez, you are incredible. Thank you so much! As you say, there are a number of variations of Douglas tartan. Some I've seen only in pictures, not in actual cloth, but they all appear to be the same basic plaid with colour variations. I have a length of fabric I purchased in Scotland that's grey with light tan, very subtle and very nice.
These plaids will definitely be showing up in my games as soon as I can download them. I am really delighted with them.