Poorly blended colors, lack of depth, dull and lifeless atmosphere, uninteresting composition, distorted and unrealistic shapes, pixelated image, low resolution, blurry details, artificial and unnatural lighting, washed-out colors, disproportionate elements, chaotic and messy design, over-saturation, lack of clarity, amateurish execution, generic and uninspired concept, absence of artistic vision, lack of attention to detail, lack of texture and depth, monotonous color palette, flat and uninteresting background, disjointed and disconnected elements, low-quality rendering, lack of realism, lack of artistic expression, unrefined and unfinished appearance.