Avoid excessive airbrushing or retouching
Avoid overly saturated colors or high contrast
Use natural and soft lighting
Avoid overly complicated or cluttered backgrounds
Use authentic and realistic clothing and accessories
Avoid overly posed or artificial expressions
Use a natural and neutral facial expression
Avoid excessive photo editing or post-processing
Use a high-quality and realistic camera filter or lens effect
Avoid artificial or synthetic-looking textures or patterns, 
Duplicate, choppy, multi, two faces, two, disfigured, kitsch, ugly, over saturated, grain, low-res, Deformed, blurry, bad anatomy, disfigured, poorly drawn face, mutation, mutated, extra limb, ugly, poorly drawn hands, missing limb, blurry, floating limbs, disconnected limbs, malformed hands, blur, out of focus, long neck, long body, ugly, disgusting, poorly drawn, childish, mutilated, mangled, old ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, defo