Here is Giant Purple Worm from Gale Force Nine. Except that he’s purple and really big, he has lots of teeth, so be aware! He can appear out of nowhere (from the below ground to be precise) and devour unlucky adventurer.
As with other large miniatures, airbrush really helped to speed up the painting process. After spraying with basic colors (purple for the most area and beige for underbelly) I appled dark wash. After that I worked on details with precise brush.