Flat texture, dull colors, unrealistic proportions, unnatural lighting, unappetizing presentation, amateurish appearance, lack of detail, generic textures, artificial look, unprofessional quality, unbalanced composition, cluttered scene, unappealing textures, amateur 3D work, distorted elements, unrealistic presentation, bland colors, lack of freshness, uninspired composition, low-quality rendering, unconvincing realism, unattractive lighting."