These are two pictures I took in Dickens Woods, in Alderley Edge, Cheshire on the 3rd of March at about 2.45pm in the afternoon.
This is the URL of the location:
They were taken approximately within about 15 seconds of each other on an iPhone 4:
I then reviewed the pictures.
I cannot categorically say what the bright light is between the trees. I know it isn't the sun, the moon or anything else I recognise.
I doubt it is lens flair as there's no consistency of that across the two images & when I examine the light closely it has a defined form.
There was no noise to suggest an aircraft was nearby and the sky was clear when I took these pictures.