Large queues of mourners have formed outside Westminster Hall in London, where Queen Elizabeth will lie in state for the next four days. On her casket is expected to be a funeral wreath with her favourite flower lily of the valley. Karyn speaks to Paul Thomas who has been a florist to the Queen and royal family for more than 20 years. She also plays a poem written in tribute to the Queen from the UK's Poet Laureate Simon Armitage.