A realistic full-body portrayal of a female superhero inspired by the Lionheart character. She is depicted as a strong, noble figure with an athletic build. Her costume is a blend of British symbolism and superhero design, featuring red and blue with a white cross, reminiscent of the Union Jack. Lionheart's costume includes a cape and a crest that suggests her connection to the legacy of Captain Britain. She stands in a valiant pose, with a broadsword in hand, ready to defend her ideals. The background is a scene of London, with landmarks like Big Ben or the Tower Bridge, to place her firmly within her British heritage.