I am as cluess as Claire, and all my stuff - you guessed it hit ebay.
I still have white and black hat and boots somewhere, that I planned to use, but never did.
Black jeans and or pants look great.
I just cant seem to make them hit ebay- I still wear my akubra when I need a hat, but I hate hats

I used to ride over and get nagged to enter LOL, but seriously I was so NOT into competing much, in my old age.
A bridle that came with him - somewhere in my shed that suits him too.
And a halter. I dont think it matters with the colour, both would suit your guys.
Have a good look at all the horse deals ads and the appy website, and see what you feel looks good to you.
I like the colourful shirts. Some need nothing but the shirt, but a jacket looks very neat as well.
I would consider adding a jacket. Blacks as easy as anything. You'd be amazed what you can even make do with from second hand shops too. Just search about, for the look you see in the ads and horse deals.
This is CY, but not me, as I never showed him western.
I think it was taken at the Young Show, 12 years ago or so-

Looks she won a good ribbon too-

Its very western looking for ridden tho