Nice shot Bill, nice and moody
Easy fix for the halo effect Bill and yes I think it was created through using the PS clarity a little to enthusiastically.
How I did the fix so you can have a go yourself in the future - as you have a nice horizon line, I knew it wold be easy to make a 'near enough' selection along it with the quick selection tool. Having done that, I then jumped the selection of the sky onto a new layer and then inverted the selection and jumped the foreground onto its own layer. Now with three layers, one with the original picture as the background, one with the foreground only and one with the sky only. I then stretched the sky layer down a few pixels until the halo disappeared behind the foreground. I then flattened the two selection layers and then masked it all out and then painted back in only the halo covering part of it over the original layer for a seamless fix.
Probably took two minutes.
Dave