Quote from photographer:
I saw the planes coming together, from where I was sitting they looked very close.
Photo was obviously taken with a hefty zoom lens (500m at the very least, possibly 1000m as it was a professional football photographer), and it's very grainy; lots of foreshortening going on. Looks like a JAL B773 and a DHL A300.
The Mirror says that....
incredibly, it has not been classified as a near-miss