Nice work, Andy!

Just a quick tip regarding the first few if I may… To give them a bit more punch and impact, try increasing the darks using Levels and cranking the saturation up quite a bit. Two small steps will take your image from this: (I hope you don’t mind me editing and re-posting this!)

To this:

The light at that time in the morning can be fantastic, so it can be good to really make a feature of those red/orange skies in your photos. In terms of saturation I went to +24 overall, then selected red, adjusted the colours affected to match the sky and added another +24.

Hope that’s of some use. The twin contrails shot is a stunning capture, by the way! 🙂

Paul