I have a pic of my son and there is a larege black shadow floating above him. It almost takes the figure of a dog. What is it,what does it mean? Should I be concerned?

How old is your son?

Would you mind posting the picture here?

https://www.askmehelpdesk.com/paranormal-phenomena/how-post-photo-700403.html

Just post it in the response to this thread. The link tells you how to do it.