Fife (UK) Big Cat?

A couple in the UK photographed what they think is a big cat. From the news:

"George Brown and his wife Jill, who first reported a sighting of the animal in November, were out walking their dog near Hawklaw on Saturday afternoon.
"Suddenly they saw what appeared to be cat-like beast with a black face, fawn-coloured body and busy, black tail just 200 yards away.
"Mr Brown said from the moment they had entered the field Jill sensed something, but it wasn't until they had walked nearly to the top of the hill, with their three-year-old son George close behind them, that they got their closest ever sighting.
"'We were about 200 yards from the animal when it started to move,' he said.
"'Our cocker spaniel Charlie was 150 yards from it and we were trying to stop him from picking up the scent.'
"'But we could see that this animal was the same size as the dog. We did get a good look at it and we could tell it wasn't just a domestic cat, it was much bigger and more powerful looking.'
"Mr Brown said the animal had short, smooth fur on both its face and body, but its tail was thick and black and resembled a fox tail."

The photo is not very clear, but I don't see any characteristics which would disqualify the animal from being a large domestic cat.