Excessive noise or grain that detracts from the clarity of the image, overexposure or underexposure that compromises the overall brightness and contrast, distracting or unnatural color filters that distort the original image, excessive blurring or sharpening that compromises the fine details, skewed or distorted perspectives that detract from the overall composition, distracting elements or clutter that take away from the main subject, uneven or inconsistent lighting that creates unrealistic shadows or highlights, noticeable artifacts or visual glitches that reduce the overall quality, unintentional cropping or cutting off of important elements,  human shape figures, faces