Had to share this with all of the umbee lovers here and also for those of you that just love large fish. I'm not friends with him but wanted to give him credit so I screen shot his profile too.
Those rivers don't seem large enough for these fish! If you check out his profile pics he has some that look like 15" buenos aires tetras....... I wanna believe, but it's hard. Either way, I had to share as these are cool pics!
IDK, with close inspection I don't see any distortion usually accompanied with photo manipulation. The physics of hand placement with the depressions on the fish seem to match without distortion of the photos.