I can't remember who drew these originally, Torstan possibly? But someone seems to have stolen the art, made brushes of them, and is selling them for $5 a pop here:

Add-ons - Old Map Elements 2 | GraphicRiver

Whoever did these mountains originally might want to have a word or three with the poster and the Graphicriver site...

On the other hand, if the person who posted the brushes there IS Torstan or whoever originally drew those mountains, then never mind.