I had a week away from doing any work on my computer, but I have since reworked the truck part of the image, sharpening up the details and getting rid of any of the odd bits of colour one gets from the colour adjustment process. I also started sharpening up the detail that I do want to keep.
Compare this with the original image!
When you are zoomed into 400% to edit you don't see much of the vehicle, and you are not always sure what part you are working on. However, I let myself be guided by the lines and colour I can see and for the most part I get the right result. when I was a development engineer I learned that it is best not to listen to much to tradition and craft, because they deal with the past, what is already known. In development you are dealing with things that no one else has ever done before. There are no manuals. Or people to give you the answers. The answer is to look closely at what you have and try and figure out what it is telling you. So I don't worry what I am working on, I can always zoom out and fix any inconsistencies later. There are some things that do need fixing, but it is a much quicker way of working than continually zooming in and out.
The hardest things to get right are the headlights and the tyre treads. It takes a lot of fiddling to get the lights to look right, as they stand out much more than any other detail. The tyre treads have to look continuous around each tyre and the same on all tyres - and since the original image doesn't have much detail I have to invent it. They look better before I started detailing, but there is a long way to go yet.
One difficulty with this shot is that the truck is on a slight slope. The editing program has vertical and horizontal guides you can position very easily, and you can use these to help get sharp, straight edges. Except with a 5 degree list I will have to either do all the straight edges by eye or use a more cumbersome method.
Talking of edges, I now have a sharpish edge around the truck, one I can use to cut the truck out of the background. This will make editing the truck a bit easier - but editing the background a WHOLE lot easier.