Oh come on. You've had some fun. Actually I wasn't able to copy them, some type of protection. The horses looked much like the Prezewalski horses with the short necks and thick abdomens. Not sure if they were carved into the rock or painted as the pics were small. For all the letters I heard it pronounced Prelski.
Similar pic Celeste. The ones I'd seen looked to have been done in red ochre. I guess whatever was handy. It's amazing how the colors have lasted all these years. An we watch the paint on our buildings fade.