Blurring, pixelation, color distortion, lack of detail, incorrect perspective, over-smoothing, ghosting, unnatural lighting, incorrect shading, lack of depth, misaligned objects, unrealistic textures, artificial looking edges, loss of information, incorrect object placement, incorrect proportions, low resolution, artifacts, noise, lack of consistency, incorrect reflections, unrealistic shadows, over-sharpening, incorrect color balancing, lack of contrast, and poor image quality. 