blurry or distorted bike details, unnatural lighting on the subject or bike, unrealistic or overly saturated colors, poorly composed or cluttered alleyway, disfigured body parts, deformed body parts, disfigured or deformed subject or bike, deformed tires,unflattering or inappropriate attire, unrealistic background elements, lack of attention to bike's details and design, distracting elements in the alleyway, disproportionate subject or bike, lifeless or emotionless ambiance, excessive noise or grain, lack of detail in the subject or bike, overly smooth or plastic appearance