I'm drawing a drop of water. The outside is a desert, and the inside is a forest! This was a very interesting creative illustration that involved many common sci-fi topics and elements. In this painting, a drop of water drops from the desert through the forest and eventually disappears into the ocean. This idea could combine many different sci-fi elements such as time travel, space travel, extraterrestrial life, and so on. You can also add some technological elements to the scene, such as a technology that can evaporate water or a device that can extract water from the ground. This creative explanation could be used in many different sci-fi topics such as the " Three-Body Problem " series, the " Galaxy Empire " series, and so on. Through this creativity, you can turn a simple scene into a work of imagination.