Not a Pi Day thing since I cheated with Photoshop, but... I estimate Fremen standard in 1st photo = 3m tall. That's 37px in 2nd photo (red rectangle is the 1st photo scaled down and overlaid). So diameter of sandworm at 1272px = about 100m (looks like its maw flares a bit wider). #PiDay #Dune #Sandworm