With her henna tattoos, my mind immediately went to Indian. (The ones from India, not the ones from North America

)
But her physical appearance struck me as more typical of Persian.
Quick google of 'Henna' gives:
"Henna's origins can be traced back over 5,000 years, with evidence of its use in ancient Egypt, the Middle East, and South Asia"
And... as

this guy

points out, the name is Hebrew...
So... I think the answer to 'what ethnicity?' is...
She's a
fictional character in a
fantasy story.

Tink just threw together whatever the hell he wanted to, 'cause... why not?