Here's why:
* Green Dragon: The show features a green dragon who is a pivotal character.
* Red Crystal Ship: While not explicitly mentioned, the show has a magical ship that is frequently depicted in a red/orange hue.
* Mum paints him walking through the wall: The show uses stop-motion animation, and in one episode, a mother paints a scene of the dragon walking through a wall.
The Storyteller was a British anthology series that aired in the late 80s and early 90s, often featuring fantastical stories with unique visual styles. It's a classic for many 90s kids!