here is are some photos of Koi. I have books and tons on photographs of Koi. They are all very different looking. Of course because they are different types of fish but also their different environments. I love them in natural settings but the blue color of the baby pools makes them really stand out.
If you really look at Koi and watch them for any length of time…you will see the way they typically swim together, many times they are touching.
One over the other or along side of each other.
Here are two photographs I plan to use as reference for a Koi painting.. check back to see what I come up with.