"The ferry trip from Bukavu to Goma is a real journey into Congolese society," writes photographer Federico Scoppa. "I moved to Kinshasa a month ago, and I was wrapping up my first trip outside the capital, into the restive east. I was constantly on the look-out for images. I set about exploring the boat inside out, to observe the differences between the classes, the sailors and passengers. I spent time with everyone I came across."