Yes, I see the noise that more or less jumps out in the flat background, but I see the noise in the leaf too. I guess I could bring the shot into DxO's exceptional noise reduction, but since I'm not planning to make a wall-sized print of this I'd go for "it doesn't matter." Maybe I'm just too oriented toward street, where subject and geometry are what matter.
I just went back and checked the original. It was shot at ISO 8000, which on the Pen-F is going to produce noise.