Transporting vital documents, samples and people, porter Holly - who joined Torbay Hospital in Devon during the pandemic - walks the equivalent of three marathons in a week.The decision to change careers and apply for a job at the NHS came after her eight-year-old daughter Renae was diagnosed with a brain tumour. Holly was overwhelmed by the care and support her family received from everyone at the hospital and wanted to give back to the service.After five years of remission, daughter Renae has fully recovered and aspires to join the NHS as a midwife one day.Award-winning artist Mark Draisey had a 30-year career as a caricaturist and illustrator, but changed paths in 2016, when he reignited his love for portrait art. Meeting Holly and family, Mark wrestles with how to portray and do justice to Holly and Renae's incredible story.