This is sort of what I was getting at in my post. The turquoise severums do show great blue-green colors, but I've never seen one with such a yellow body. I just feel like the colors in that original picture are not representative of the actual fish -- they look too vivid. I still think the color has been adjusted or they used some intense lighting.
The notatus severums do show really bright yellow and green when they're in spawning mode, but I've yet to see one with a blue face. The fish in the photo does have some notatus characteristics, like the maroon dots on the cheek rather than squiggly lines. I guess it could easily be a hybrid of a notatus and something else, because I found out firsthand that notatus and efasciatus will cross-breed and produce viable fry. I had it happen in a community tank here at the house. I didn't raise the fry because I don't want to put mutts out into the hobby...