I generally like the photo but I do think that the lens flare is rather strong in the composition. If the flare was dulled down slightly then it might not overwhelm the photo.
Other than that I would say it is a very striking photograph.
The only criticism I have is again the lighting. Although I agree the lens flare is a bit on the strong side, I wonder whether it should be there at all.
It seems to me as though the light source is from behind the camera, as opposed to behind it.
Nobody seems to like the flare, which is flare enough....(Hmmm)
Seriously, though, the flare is supposed to represent ....something.....and pose the question and give tension to the picture. It isn't intended to be read as the main light source. I may have to think again to make the message clearer.
I have another picture with flare that I will post eventually, called "The Coming of the Vitons" and to understand its implications you need to be aware of Eric Frank Russell's "Sinister Barrier". This is an SF novel that postulates that we have all been slves of the Vitons for centuries. They look like my flare spots if you can see them, but for most they are undetectable. They feed on emotion - fear, hatred, etc. Their banquet is the pain of War.
A nice story, and I'm trying to produce a photograph that shows the Vitons. Think of this current one as arms raised and running with blood (the tree of flames) and the flare is a feeding Viton. Very obscure context I know, but I am trying to think about things creatively. I must make it clearer!
I think that the flare could work but it is just too powerful. I think it needs to be toned down dramatically to make the mysterious effect that you are after.
I think if your trying to represent this 'being'. Especially if there is very little in the way of definitve description of its appearance then I think the spherical aspect works.
Thinking about it, perhaps I should have had in mind a book cover rather than such an abstract representation. Then it would have been some sort of human figure(s) with the Vitons hovering around, taking their fill of emotions.
I'll see what I can do in a studio shoot sometime.