A picture of some alpacas in a field near Eynsham. Unfortunately, the camera was set to iso400 because I'd been taking pics in dull light and in interiors - this has led to some noise in the 'shadow' shot. For these pics I have used gimp-2.9 from 2017-06-26 - at that time ufraw was still accepted as a plugin for my raw files.

First, the camera's own jpeg, resized to 900 pixels high.
Camera jpeg
Second, from the raw photo at 0EV : a bit too dark.
0EV raw
Third, from the raw photo at +1EV : a better "correct" value.
+1EV for better starting point
Fourth, add +2EV to "correct" for any shadow detail, so actually +3EV.
+3EV for shadow detail
Fifth, subtract 2EV from "correct" for any highlight detail, so actually -1EV.
-1EV for highlights
At last, use the "Three Exposures" filter.
Three Exposures
Seventh, G'MIC Local contrast enhancement filter.
Local contrast enhancement
Eighth, the Advanced Tone Mapping filter.
Advanced Tone mapping
Ninth, use the curves tool for a bit more contrast.
Curve for contrast
Finally, sharpen with the GEGL Unsharp Mask.
Unsharp Mask