Never work with children or animals they say.
But for artist Chris Levine, who has previously photographed Britain's Queen Elizabeth II, the opportunity to digitally capture super horse Frankel in portraiture was just too good an opportunity to turn down.
After all, it's not often you given the chance to capture greatness.
For the artist who has worked with supermodel Kate Moss and diva Grace Jones this was an assignment harder that it might seem
He spent two days with Frankel -- the first horse he has shot -- to produce his otherworldly 3D image of the stallion.
"On the light box he literally is luminescent," said Levine of his work, set to be unveiled on Champions Day at Ascot Racecourse this weekend. "It somehow goes beyond the physical and into the spiritual.
"This beautiful creature is a divine creation ... Life is a pretty miraculous phenomenon that we're all part of, it's an unfolding miracle. An animal like Frankel, if you contemplate it, is a divine creation."
Levine's striking portrait of the Queen -- entitled "Lightness of Being" -- was unveiled in 2004 and the photographer suggests sport's foremost thoroughbred shares a magisterial quality with the world's most famous monarch.
The artist depicted the Queen in full white regalia with her eyes closed almost as if she was inhaling the essence of power.
"They're supreme beings with iconic status," Levine told CNN. "We were really interested in shooting icons, they don't necessarily have to be human icons.
"I saw it when I looked at (Frankel's) head shot, you could see that this really was a great being.
"For some reason it made me think of emperors on a coin, you get a profile shot of a head of state, somehow it was aligning with that contextually."
While Queen Elizabeth's reign is very much ongoing, Frankel ended his two-year racing career with a perfect 14-0 winning record.
He is now enjoying a lucrative retirement with trainers paying £125,000 ($199,000) to breed their mares with ahorse
"Frankel is a superstar," explained Levine. "He's got a huge following. It was a real challenge, to take it somewhere different in the land of equine images, portraiture and art.
"I wanted to do something that portrayed Frankel as extraordinary. He really is an octave about greatness. I wanted to convey the extremity of what he is."
The finished product, which is 1.2 meters wide and 90 centimeters high, is the culmination of months of work which began when Levine asked to photograph Frankel.
"We got an enthusiastic response and they were terrific and made Frankel available to me," said Levine.
"We wanted to shoot the horse in direct sunlight because that would really show his coat.
"We had about six days on standby waiting on the weather, we shot it in two days. In terms of post-production and editing it's been about two months."