Snerdywebs I feel is on to something with the girl on the back, You can also try a different body position for the girl. The bag feels to far away from her. If you want to keep it with the circle try different body angles and positions... also try just putting it on the bag like snerdy suggested if anything I think that one is the go!
And color scheme..not a fan. Try some different colors. Compliment colors may work better for you.