A 25-year-old boy, wearing gold-rimmed glasses, cycling through the landscapes of Guilin, under a clear blue sky. (best quality, 4k, high-res, masterpiece:1.2), ultra-detailed, (realistic, photorealistic, photo-realistic:1.37), vibrant colors, stunning lighting, capturing the beauty of nature in every detail, lifelike forestry and limestone karsts in the background, lush greenery, crystal clear rivers, gentle breeze rustling through the trees, peaceful and serene atmosphere, creating a sense of harmony between man and nature, immersive and awe-inspiring scenery, a perfect blend of tranquility and adventure, inviting viewers to explore the wonders of Guilin.

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))