"I spent a day with a giant, white life-sized horse and put paint all over it, which was really amazing."
Sievers has also painted a bespoke artwork on Perspex with a splash-like pattern – in colours including rosé pink and famous Veuve Clicquot yellow - mimicking the movement of champagne.
"I love any situation where I get to be involved with other women who are doing beautiful things," said Sievers.
"I think people are opening up a lot more to women artists and women artisans. It's becoming such a normal thing these days. I think art particularly is an area that has been quite male-dominated for so many years and I think that women are on the rise, definitely."
Other creations set to feature in the marquee included colourful ceramics by talented artist Yon Kavvas and a four-tier, metre-tall cake created by Karla Goodwin.
Goodwin, the owner of Bluebells Cakery, learned her trade at Primrose Bakery in London – where clients included Kate Moss and U2.
"The flavours that we're creating are really summery and fresh. We've kept it in line with the rosé flavours…like strawberries and passionfruit – really fresh flavours," Goodwin said.
Land Rover New Zealand Polo Open is set to take place at the Auckland Polo Club in Clevedon on February 18. The exclusive Colourama Marquee is by invitation only only.