Looks like someone is out and about either hunting, or trying to look extra big and scary to scare away others. Could also be a sort of lookout (was going to say lookout post, but it's a rock so uh, lookout rock ?)
Kinda looks like she's primed and ready to pounce at a seconds notice.
Kaspar (the artist!) did an incredible job with this <3

Arianda is miiineee
Artist is Kaspar - https://www.instagram.com/kasparherdrich/