score_9, score_8_up, 2d, sonic (series), white background, solo, 1boy, border collie, brown eyes, (medium hair)+++, (curly hair)+++, black body fur, medium tan belly fur, athletic body, dark blue open jacket, dark blue pants, thumbs up, happy, closed smile, standing, from front, looking at viewer, sonic battle style

3d, low-res, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, username, blurry, artist name, (deformed++, distorted, disfigured++), poorly drawn, bad anatomy, wrong anatomy, extra limb, missing limb, floating limbs, (mutated hands)++, (mutated fingers)++, (merged hands)++, (merging fingers)++, disconnected limbs, mutation, mutated, ugly, disgusting, blurry, amputation, (plump belly)+++, too many fingers