Unknown magical girls,seen in episode 12! (Part 1)

Theories -The Viking girl is actually set in Viking times. Hinted at by the weapons around her (Sword,battle axe and shield) -The girl with the volcano background is at the eruption of Mount Vesuvius (Pompeii) -The bear themed magical girl is in the future. Thought of by the seemingly ‘futuristic’ setting around her. -The blue haired girl is hinted at to be a Dakani princess. Himalayan legends tell of a princess who subdued a demon by letting herself get trapped alive in the Chortan Kora,which is the white monument behind her.