This first version works easily. Share your images for multiple examples.

Many triggers words, don't use them at the same time. Your cowgirl can seat in a saloon, riding horse, be a cowgirl as well as a sheriff, cute woman or mature woman.

Good results with Stable Yogi: Cowgirl outfits Lora.

Some settings used with Stable Yogi Babes:

CFG 2.5-6

50 steps

Euler/DPM++ 2M KARRAS

Clip Skip: 2 to 6

Have a good time!!