You look good.

Honestly, there's nothing wrong with having everything coordinated like this. It's good to see an example of someone doing it as an illustration of the pros and cons of wearing lots of tartan pieces.

The main critique seems to be that the monochrome look is "boring" (though I recall it being quite fashionable back in the '90s). You might try swapping out individual pieces --the flashes, the tie, etc. -- for a spot of contrasting color just to see what you like.

The other critique is that the tartans on ties, hats, and such are typically smaller and may not be the same colors, so that may look somewhat "off."

Enjoy your new kilt......some of us still have a few more weeks wait ;-)