I came across this painting while in 19th arrondissement. To give you a background, you will find such art in many places in Paris. Some of them are the works of famous street artists. At least, the street artists are well known in Paris if not worldwide.
This was painted on a wall. This section of wall seemed to be dedicated to Africa. My interpretation is simple. It is about slavery. The beautiful girl is braking the chain in order to set herself free.