12-inch yellow plush dragon with blue wings, Niko

I lost my 12-inch yellow plush dragon, Niko, yesterday around 3pm near the Tate Modern on the South Bank, by the Millennium Bridge in London. It's a soft Jellybean-brand plush with blue satin wings and an orange belly. There’s a tiny green star stitched on the left paw and a rainbow patch on the right ear—easy to spot if you see it. It was a birthday gift from my nephew and means a lot to us; I’m really hoping someone picked it up and can bring it back.