I would avoid another 'anna' ending and probably an 'ella' although they are all lovely and very girly.
It's also quite unusual and doesn't fit in with the traditionally girly names. Mixed Russian/Latin according to google. Do you want another name the same?
Ummm ...
Aurelia, Arianne, Adrielle, Anastasia, Anika, Antonia, Bianca, Cordelia, Cornelia, Clarissa, Cassandra, Corinna, Cecilia, Claudia, Danika, Emmeline, Evangeline, Erica, Elianne, Ekaterina, Francesca, Giselle, Genevieve, Hannalie, Isabelle, Isadora, Josephine, Julissa, Jocasta, Juliette, Jemima, Katrina, Katerina, Liliana, Lydia, Larissa, Leona, Leandra, Lucinda, Miranda, Marissa, Marianne, Mila, Madeleine, Michaela, Natasha, Natalia, Nadia, Octavia, Ophelia, Pandora, Paloma, Petrova, Philippa, Ramona, Rowena, Romilly, Serena, Sabrina, Saskia, Sapphire, Sierra, Tallulah, Tamika, Victoria, Vanessa, Violet, Viola, Vashti, Winona