Urban setting, harsh lighting, garish colors, chaotic composition, unappealing linework, messy details, lack of harmony, generic flora, artificial atmosphere, poorly executed shadows, lack of serenity, flat perspective, unconvincing sunlight, uninspired concept, unimaginative linework, clumsy coloring, disjointed composition, unrefined technique, lack of depth, unimpressive flora, lifeless expression, lack of attention to detail, amateurish execution, lackluster ambiance, unoriginal style.