Ghostly glowing green figure walking on water in Marble Falls, Texas

A ghostly apparition is photographed and it seems to walk over water of a lake in Marble Falls in Texas.

Witness report: We were on private property taking pictures of this area surrounded by hills and when we looked back at the pictures later this day, we saw this glowing green object on the surface of the water.

I had taken other pictures in concession and none of the others showed this object.

I cannot explain what this glowing object is and hoping you could help identify.

Could it be something, or is it a reflection from the sun? I can see a shadow on the water around the object.

Mufon case 72432. The image was taken last year on July 29, 2014.
Link original image: http://www.mufoncms.com/files_jeud8334j/72432_submitter_file1__20140318182919.jpg