Glowing UFO taken over Holiday, Florida

On July 16, 2017, a witness was enjoying the pool in Holiday, Florida. Here, he has taken a picture where appeared mysterious blue lights

Witness report:

I was just enjoying the pool at the Key Vista Clubhouse and taking pics of the sky because the clouds looked beautiful and after I took the picture I noticed on the right, top of my picture a weird, blue shape. But i didn't hear a plane or helicopter while I was taking the picture.