Vintage western denim short sleeve button up shirt with horses / M

Gorgeous vintage jean shirt with horses and Aztec style colour blocks embroidered onto both front panels at the chest. Loose boxy fit but not oversized where it’s ‘too big’. Vintage, either late 80s or early 90s. Vintage condition: one small bleach mark on the lower back. Quite small and not something that anyone would see or pay attention to. Please see last picture!