Empty black space, lack of detail, unrealistic colors, pixelated, flat design, amateurish composition, inconsistent lighting, disjointed elements, unnatural perspective, blurry edges, overuse of gradients, lack of depth, simplistic shapes, lack of texture, generic sci-fi elements, uninspired concept, lack of atmosphere, cartoonish style, disproportionate features, messy lines, amateurish rendering, lack of realism, disjointed composition, uninteresting subject matter, chaotic layout.