flat color, bold outlines, 1boy, belt, clenched hand, closed mouth, fire, frown, looking at viewer, male focus, pink eyes, red eyes, red hair, scarf, serious, sleeveless, solo, spiked hair, vest, white scarf, natsu dragneel ,

blurry, bad anatomy, bad proportions, bad hands, poorly drawn hands, poorly drawn face, extra fingers, too many fingers, fused fingers, clones, (worst quality, low quality, jpeg artifacts:1.4), (bad anatomy), deformed, disfigured, extra limbs, malformed hands,