Page 24-25 of James Prosek's "Trout: An Illustrated History" shows the perfectly named Long-Finned Char. I really like how dark the back is on his painting as well as the few photos I could find online.
Unfortunately, the edges of the painting got roughed up when I tore off the painting tape. A bit of a bummer, but lessened learned. I may start straying from the hard edge square painting.
Next up is the Brook Trout. I painted this a little early. So I'm going to head straight to Prosek's variation, the Labrador Brook Trout.