So what happend to all the artists after this? This looks like a well drawn mastidon. Later American Indian art looks more like boxes with sticks for legs and antlers.
Now, for what happened to later artists ~ they got killed when what is believed to have been a giant comet hit the residual ice sheet in Canada about 11,000 BC. That brought on the Younger Dryas, and that in turn brought back a truly evil, nasty, brutal climate to the Northern parts of the Northern Hemisphere for thenext 1500 years ~ to about 9500 BC ~ the Clovis culture simply disappeared. Later cultures were far different.