So how is this?

[SFCRick]

Might I suggest that if you decide to wear the fly plaid you "open it up so that it hangs wide and loose behind you, in the pic it looks very thinly folded. I agree with the others to get larger non white hose and the hand tied bow tie is best. I did see a few sport kilts at my last formal function and as has been said they stuck out badly.

[McClef]

I am one of those fans of the fly plaid myself But I only have them for 3 of my 25 kilts.

I agree that it needs to be a little wider at the back though.

It depends on the level of formality required and can add that little extra Je ne sais crois in the right circumstances.