That is a great family history and a very nice and very formal attire.
Others have a much better eye on these things but from what I see I think your kilt is a bit low.
This is because, like many of us, your first instinct is to have the belt at what would be belt height for a pair of trousers. In a more traditional kilt it should be worn higher which will bring it up the knee a bit as well.
Perhaps others will comment with more detail.
Wear it with pride.
Enjoy.

CTBuchanan