Chained up freedom concept.
This concept design has lots of ideas behind it.  The main figure of a woman (that has a color of a Statue of Liberty) represents the struggle against the chains of oppression.  Mechanical wheels and money in the background as well as the mask on the left represent the reality of everyday's life.  As you can see, a huge chain wraps the world to it saying that it's all unbreakable.  The woman can also represent soul and the fearless expression on her face tell us that she is still ready to fight and will face whatever difficulties life has to offer.  The concept of time and water represents the unclearnes and uncertainty of the future.  Whatever this struggle will bring, we don't know yet.