Unnatural colors, chaotic composition, lack of detail, harsh lighting, unrealistic proportions, distorted anatomy, dull and lifeless atmosphere, amateurish execution, flat and uninspired background, abstract, low-resolution rendering, excessive noise, oversaturation, overly simplified, disjointed elements, out of focus, lack of harmony, poor perspective, unnatural textures, dull and monotonous color scheme, uninspiring composition, crude brushwork, mismatched style, unprofessional quality, lack of depth, generic and cliché.