I like how drawing and photography was used at the same time. Although this was tried a lot of times, the fact that both types (photography and pencil drawing) can be used helps widen the possibilities for a design.
Li- The meaning of this poster was related to the issue of global warming and which was translated by the idea of melting earth. I really appreciate the design of the falling liquid from the earth. I thought this is the metaphorical imagery of glacier.