Watermark, out of frame, text, blurry stars, flat colors, simplistic design, pixelation, low-resolution, distorted black hole, overexposed, harsh lighting, dull colors, lack of depth, unnatural perspective, poorly aligned stars, cluttered composition, missing cosmic details, disorganized, bad contrast, unrealistic proportions, sloppy artistry, noisy background, disfigured galaxy arms, lack of depth, no sense of wonder, disconnected elements, amateurish, lackluster, poorly defined, unimaginative.