瑞 ('auspicious') is a high-frequency 'lucky' character in transliterations (
瑞典 Sweden,
瑞士 Switzerland), and
娃 ('baby girl / doll') is reserved for female names. In recent media,
瑞娃 most often translates Reva — e.g. the Inquisitor Reva (Third Sister) in the Star Wars series Obi-Wan Kenobi.