An exact painting of a photograph isn't transformative, but a photograph that's in a frame (generally) is a transformative work. Framing has been recognized as an art, even if the item framed isn't, but the framed whole is a transformative work of the item framed. The description is that the work was "transformed" by being annotated and printed from a screenshot. I have no problem with that. Though, TFA and the summary disagree on whether the exact $90 item is the same as the $9000 item, or just a new transformative work of the original, unrelated to the $9000 item (unrelated meaning copying the style, but not content).
The thing that confuses most people about copyright is that sweat of the brow is unrelated to copyright. A creation that's trivial is a creation. A work that's not creative, but takes 10,000,000 man hours, is not copyrightable.