I am currently doing this challenge on Polyvore. The ones in bold are ones I have made a set for.

• Camilla Macaulay, The Secret History
• Mary Lennox, The Secret Garden
• Catherine Linton, Wuthering Heights
• Sara Crewe, A Little Princess
• Dolores Haze, Lolita
• Morgan Le Fay, Arthurian Legends
• Isabelle, The Dreamers
• Margaret Hale, North & South
• Erin Brokovich, Erin Brokovich (Also real)
• Holly Golightly, Breakfast at Tiffany's
• Eowyn, The Lord of the Rings
• Arwen, The Lord of the Rings
• Sansa Stark, A Song of Ice and Fire
• Margaery Tyrell, A Song of Ice and Fire
• Esther Greenwood, The Bell Jar
• Diana Meade, The Secret Circle
• Ophelia, Hamlet
• Juliet Capulet, Romeo & Juliet
• Scarlett O'Hara, Gone With the Wind
• Alice, Alice's Adventures in Wonderland
• Tess Durbeyfield, Tess of the D'Urbervilles
• Matilda Wormwood, Matilda
• Amelie Poulain, Amelie
• Lady Sybil Crawley, Downton Abbey
• Anne Boleyn, The Tudors (I know she's not fictional, but still)
• Lucrezia Borgia, The Borgias (She's real too)
• Giulia Farnese, The Borgias (Also real)
• Lisa Simpson, The Simpsons
• Mary Poppins, Mary Poppins
• Catherine Morland, Northanger Abbey
• Marianne Dashwood, Sense & Sensibility
• Cassie Blake, The Secret Circle
• Harriet Dufresnes, The Little Friend
• Jane Eyre, Jane Eyre
• Daisy Buchanan, The Great Gatsby
• Charlotte, Lost in Translation
• Lucy Honeychurch, A Room With a View
• Hazel Grace Lancaster, The Fault in Our Stars
• The Lisbon Sisters, The Virgin Suicides
• Marie Antoinette, Marie Antoinette
• Violet Baudelaire, A Series of Unfortunate Events
• Briony Tallis, Atonement
• Jenny Mellor, An Education
• Viola de Lessups, Shakespeare in Love
• Princess Buttercup, The Princess Bride
• Princess Ann, Roman Holiday
• Rachel Berry, Glee
• Fanny Brawne, Bright Star