Quick sketch in Photoshop. A sorcerer ends her career by giving herself to the swamp she's taken her powers from all these years. As she goes down she loosens her pendant: it's been part of her link to the swamp, and now it'll float on the surface, connecting her spirit with the upper world. Some day it may help her come back... but now she's happily tired, sinking into the bit of the world that's always held her soul.