All write (above, from left): Royal Commonwealth Society ambassador Gyles Brandreth, RCS former Queen’s Commonwealth Essay Competition prizewinner Mei Fong and chair Linda Yueh, junior runner-up Raisa Gulati, the Duchess, director Femi Elufowoju Jr, senior winner Kayla Bosire, RCS ambassador Geri Horner, author Dame Susan Hill and senior runner-up Aditi Nair