Highlander, nice tartan! I don't think I have seen that one before.

And while I would never have considered it, the combo with a black bowtie and white shirt is a good look. And are thos ghillie brogues I see? I assume the hose are white as well?

Probably need a belt, but you could attend any formal or semi-formal even dressed that way and nobody would accuse you of being under-dressed.