When you enter City Gallery, located at 994 State St., the first thing you notice is the vibrant painting in the window. Joyce Greenfield’s Boeing resembles an abstract plane, done in bright greens and blues. The colors evoke the natural tones of the earth, but the plane itself is manmade and mechanical, creating a dichotomy of natural versus human creation. There is a sense that the plane is a miniature planet, orbiting the earth.