tmasterpiece, Best quality， The exterior design of future trains is expected to be more streamlined and aerodynamic than current designs. It may have a sleek and modern look, Comes with advanced security features，For example, automatic collision avoidance systems. Trains may also adopt advanced energy-saving designs，such as solar panels or wind turbines，to reduce carbon footprint. Additionally, Exterior may have advanced security features，such as cameras and sensors，to ensure the safety of passengers. Sin embargo, The specific design of future train appearances will depend on technological advancements and passenger needs.

verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))