Science fiction paintings usually depicted scenes from the future or alien worlds. Colorful: Science fiction usually uses bright colors to highlight the colors and visual effects of the future or alien world. 2. Simple lines: Science fiction usually uses simple lines to highlight the mystery and technology of the future or alien world. Unique shapes: Science fiction paintings usually use unique shapes to highlight the uniqueness and futuristic feeling of the future or alien world. 4. Rich details: Science fiction usually pays attention to details to highlight the realism and detail of the future or alien world. 5. Creating an atmosphere: Science fiction paintings usually use the creation of an atmosphere to highlight the atmosphere of the future or alien world. For example, the use of smoke, lighting, and other effects to create a sense of mystery. Drawing sci-fi required a certain amount of imagination and drawing skills. One could enrich one's imagination by reading sci-fi novels and watching sci-fi movies. At the same time, he could also refer to some sci-fi lessons and samples to improve his drawing skills.