This is a picture of Jeanne Argent's sculpture of Alice Through the Looking Glass and it can be found in the grounds of Guildford Castle near the Chestnuts, the house that Lewis Carroll leased for his six sisters after their father died in 1868.
Through the Looking Glass was published in 1871 as a sequel to Alice in Wonderland. Through the looking glass, Alice finds a book of poetry, which includes Jabberwocky, plays chess against the Red Queen, and meets many other characters.