Concept: Robot and Human Child in Post-apocalyptic Sci-Fi

Final image for my Game & Entertainment Design class. I developed a post-apocalyptic world in which as a result of climate change, Earth is subject to sudden and extreme storms, causing for plant-life to be scarce save for dense forests (and the occasional resilient plant). My character - a sentient robot - seeks to preserve plant-life that might not otherwise survive in the harsh environment. She often goes on excursions to collect samples and research the ecosystems around her. A human child who she rescued is learning the ropes under her and helps her out with her endeavors.