Not processing an image
It’s rare that a JPEG image straight out of the camera requires no subsequent work. To get an image looking its best, you may need to tweak the levels, fix a colour cast, add some additional sharpening or crop it for a better composition. If you shoot RAW files then you have to process the images yourself, which adds time to your workflow, but at least you’ll be starting with the highest-quality file that your camera can produce, and any changes that you make are never permanently applied to the original image.
Images can appear flat straight out of the camera, even when you’re shooting in JPEG format. Most images require some processing, even if it’s just to sharpen them and add contrast