Enormous evening contrails

I was intrigued by an enormous amount of intricate fine structure in the contrails themselves and the layer of thin high-altitude haze onto which the contrails are actually casting a shadow.

 

A challenge for an imaging sensor, and I think typically a situation where a CCD sensor (as opposed to CMOS) might do a bit better, extracting just that decisive little bit more of contrast and fine colour gradations.

Done