Update: The artist has a 2nd printing available, limited to 50 prints. (Thanks John)
From Matt (the artist) on Facebook: "Hang tight Cure Fans ive stopped the orders so I can catch up on the other orders. I will re list them ill give you a day and a time but they are on a first come first served basis. Ta! mattx".
Also, looks like Robert wants one, too - "Robert Smith wants one of my posters... I am star struck in an email" (Thanks Antti)

Limited edition (100 printed) Cure Bestival poster announced. (Thanks to Lovecat @ curetrade.de)