Thank you Paul, I did as you suggested: exposing for the sky and then recompose. You might notice that the sky is not uniform, because there were wires I wanted to erase, but the clone tool of iPiccy did not do a great work and I'm in a hurry this morning. Do you ever use the clone tool? In photoshop?
I love the flare! Sometimes I try to use the clone tool of PicMonkey but I don't understand how it works in a subtle way. When I use it, it always leaves traces I don't want... So, in that department I can't Beste of any assistance to you ;-(