Eight-year-old Emilia Chichester has scooped a top regional prize in a national gas safety competition for her eye-catching poster which warns of the dangers of carbon monoxide poisoning and the signs to look out for.   Emilia, who attends St Joseph’s Catholic Primary School, won the Key Stage 1 Wales entry of the ‘Get Creative, Be Safe’ competition picking up a prize of £150 for herself and £300 for her school at an event at the House of Commons….