Signatures, text, frames, watermarks, dull, uninteresting, unartistic, unimaginative, lackluster, unrealistic, imbalanced composition, disharmonious colors, mediocre visuals, unconvincing rendering, amateurish, visually unappealing, poorly crafted, lack of detail, inaccurate lines, rough textures, unnatural proportions, inaccurate anatomy, uninspiring lighting, detached atmosphere, static perspective, shallow depth, blurry focus, low resolution, undefined shapes, uninteresting expressions, aesthetically displeasing, tasteless, visually unengaging, lack of craftsmanship, unrefined artwork, visually unremarkable, poorly executed, disjointed integration, unpolished finish, blurry.