The last one, even though I don't have enough pieces, but it's due tomorrow.I might as well summarize this one since I haven't talked about the other ones, don't really know why but I feel like it.
Bo-dool (right) died and before he died he took out his heart to give to Dunnam (left) as a gift of love. So the boy's all sad now, he holds his lifeless cousin in his arms. Dull colors mean death and the yellow disk around Dunnam's head means he's full of life (duh /sob) It's not deep but yeah.
The heart is associated with love, death, life, emotion, blood.