I found this one in a thrift store too, ok I found all my stuff in a thrift store. This is a painting by Portia, a Mission Revival artist. He usually did larger southwestern village scenes but this is a small study of a vaquero, a Mexican horseman. It looks like Portia did this study quickly with thick brushstrokes then touched up the clothes and the background to give it a finished look. I think he must have liked the result. The guy looks like he really knows his work, very confident. I think this was quite a find.