You might want to try another method.
Duplicate the background layer. Make a selection of the entire fender. Feather it by 1 or 2 pixels. Sample a red color, shoot for the area right under the headlight. Now fill that selection with that color. Heres the trick, change your blending mode to either overlay or soft light. It will be much darker but thats ok. The color has filled in a lot of the blue from the sky and the other light colors.
Duplicate the layer again by draging the layer down to the new layer icon. Now take somewhat large soft tipped brush and sample areas near those car and building reflections. Lower the brush opacity to maybe 20 to 30% and carefully paint over the cars and anything else you don't want showing. Keep sampling the colors near where your painting. Leave the clouds in on the top side of the fender to make it look more realistic. This requires some practice. Do it on this seperate layer and you can just delete it and start over if you dont like it.
The photo is still dark so lets make an adjustment layer, pick anything like levels or curves. Don't adjust any settings , just click ok. Now change that layers blending mode to screen and the image will lighten back up for you.
Thats it and heres the result I got after a few minutes. With more time you can do even better.
