For a better picture, have a look on the Louvre's website: http://www.louvre.fr/llv/oeuvres/detail_notice.jsp?CONTENT%3C%3Ecnt_id=10134198673225208&CURRENT_LLV_NOTICE%3C%3Ecnt_id=10134198673225208&FOLDER%3C%3Efolder_id=9852723696500781&fromDept=true&baseIndex=9