Its pretty. Its spelled exactly like the Japanese name, which would be unthinkable for boys in Japan, probably (their names end in -ya, -ta, or even -ha, but not -a by itself). Maven sounds very made-up, and kind of masculine, or at least unisex like Haven or Raven. But Noa and Maven go together as siblings. They both have some pretty interesting choices.
https://www.behindthename.com/polls/356294https://www.behindthename.com/polls/356351https://www.behindthename.com/polls/member/181370