Originally Posted by IntrepidFrog
Would you mind explaining a little more about painting his fur "theoretically" as it has such a beautiful effect, I am curious about the technique. Thank you in advance.
I'm not formally educated in art but I've picked up a few things from others and stuff I've read. I've also made my own observations and drawn my own conclusions from there so I imagine the correct parts of this summary are pretty common info.
Hopefully, this isn't too obvious: When warm light (sun) directly hits a subject, the areas of the subject hit by the light have a warm tint, while the corresponding shadows have a cool tint. In the darkest areas of cool shade, the colour becomes warmer, while in the lightest warm areas (i.e. highlights) the colour becomes cooler. The interesting areas are those where transitions between the warms and cools take place. I have this idea (I could be way off) that temperature transitions occur via the spectrum - i.e. in going from one colour to another, you follow the sequence of a rainbow one way or another, albeit subtley.
In my case, the reference photo was taken indoors with a flash. I hate flash snapshots so I invented my own outdoor lightsource for the painting. Since the lighting conditions would be fundamentally different I was forced to work from this model. I can't say I applied the theory as well and completely as I could have but it certainly helped me to proceed with a bit of confidence and the challenge will hopefully aid in future projects.