1st Highland Dress I feel proud of...critique?

[David Thorpe]

Nice kilt, jacket, waistcoat, hose, shoes, shirt and tie.
Since you asked...
Patchwork flat cap... meh. As someone else suggested, a Balmoral or even a (gasp) Glengarry would be more traditional.
Silver-cantled sporrans are normally reserved for evening or formal wear. A nice plain brown or brown and black sporran would do nicely with the day-wear outfit.
Not sure how high your garters are positioned, but with that length of cuff overturn, the flashes should extend maybe 2" downward from the cuff. I personally like tartan flashes, but evidently in terms of current Scottish fashion, they are considered passe and say, "hired outfit".
Kilt pin is fine, but is rather high. Maybe down to the dark blue horizontal stripe? I also like to center mine on a vertical stripe.
Very good first effort.
As always, just MHO and YMMV.