This is a good concept, but I wonder if the scope is too great. There are quite a few mechanics here that would need to be implemented in one month; player health, plants mutating, animals and insects, food from the plants, different weather elements. It sounds like a lot and I would consider potentially scaling back. Besides that I think this is a good idea and I like the story as well. I am looking forward to seeing this game finished and am excited to play it. I just noticed there are 8 people on the team, maybe this is the appropriate scope then!