Hi, dear.

The solution I see immediately is to place the pin or marker for the city, region or country of the artist.
We can consider placing a different place than where I actually have my house/place of artistic creation. But it would take away from our veracity.

Yes, the option of making a post about a museum, permanent exhibition, art gallery. A meeting place for artists, etc. It would be very good to post on Steem Atlas.

Since, at the moment, Steem Atlas only works with a pair of coordinates, from the site to which you make the post.

In My Maps, we would show a profile of the artist, this can be modified at any time. Look at the Ron Throop marker. Place his website there.

Logo/photo/avatar
I think it is good to personalize each marker. Recognizing the discipline can be done by establishing different layers on the map, one for painters, another for photographers, the possibilities are many.
But