"I can go over the design and paint over aspects that I don't like, whereas with an actual scene, particularly one that is well known to the public, you really have to accurately paint what you see," he said.
"In the case of this painting, I have built it up from several photographs of different scenes that all contributed to the overall result."
Griffiths has been mouth-painting for 25 years, after he broke his neck and lost the use of his hands in a swimming accident at the age of 13.
He continued his education after the accident, and became interested in various forms of art, which inspired him to travel extensively.
In 1991 he was awarded the Bruce Hopkins Memorial Award, a competition that commemorates his contribution to Mouth and Foot Painting Artists (MFPA) and to artists with disabilities throughout New Zealand. He has now won the coveted prize four times.
Members of the MFPA gain their income through the sale of paintings and products illustrated with their paintings.
It all began with Christmas cards, but now includes a wide list of products ranging from special occasion cards to jigsaws, tea sets, address books, calendars, Christmas serviettes and place mats, gift tags and wrapping paper.
There are several new products in the mid-year range this year, including bone china coffee mugs, greeting and gift tags and wrapping paper.