The top picture is a screenshot of an article headline reading “Mum with tough soles breaks world record for fastest 100-m barefoot run over LEGO bricks”. The bottom picture is a screenshot from the movie Live Free or Die Hard, with the caption “Man, there’s tough and there’s stupid.”
I dunno. The foot part is darker than the leg part. And unless she specifically tanned her foot, I doubt that’s a tan line.