Halter Showing Clothes!?!?!

Hi everyone =)

I'm going to be competeing my half andalusian in a breed show next week and i'm not sure what to wear for the halter class.

I was thinking black slacks, blue or pink dress shirt, and a black tie. ???

Or should I just wear my english riding show clothes??

Help please lol!!

Thanks,
Amanda

If you are doing ridden classes as well its easier to just wear those, but what you said should be ok too.