"If there's a really strong difference in colour between different light sources and the image looks uneven, I sometimes convert the picture to black and white, or simply reduce the saturation a lot, and then apply a warm or cool tone to it," Lorenz adds. "It just helps to clean it up a little bit."
Images should, of course, be pin-sharp where that was your intention. To ensure that a photo looks natural, though, avoid over-sharpening it in software. "I never sharpen images when processing them in Adobe Lightroom," explains Lorenz. "I do it later, because when you're creating a print, for example, you need to sharpen the image differently depending on the size of the print. But the way you apply sharpening is personal taste, really – although I would say that, once again, less is definitely more."
The location where you edit your images and even the time of day can have an impact on the end result. If you don't have a dedicated space for editing, with consistent lighting and neutral-coloured walls, Lorenz's tip is to make multiple versions of your pictures.
"Sometimes I make ten different versions of my favourite image. I may do the first edit in the morning, one after lunch, a third one in the afternoon, a fourth one at night and so on. And then I compare them.
"Out of all these different edits and colour gradings, there's usually one which is exactly how you saw the image, and then you can maybe do some final tweaks to this one. Of course, this technique only really applies when you're working with a couple of images. It's not something that you really want to be doing when you've got 100 pictures to deal with."