Acheron in red form from Honkai Star Rail hold the Katana Sword in the mouth.

ng_deepnegative_v1_75t, [bad_prompt_version2:0.2], painting by bad-artist, [easynegative:0.5], verybadimagenegative_v1.3, badhandv4, extra legs, missing leg, disembodied leg, wrong leg, inverted leg, extra limb, missing limb, bad feet, text, logo, username, signature, watermark, error, title, artist name, trademark