I'm surprised no one has apparently noticed, commented or tagged on this in seven years, but considering this has no source and is exactly twice the dimensions of post #1555408 means this is very likely a waifu2x upscale.
I'm surprised no one has apparently noticed, commented or tagged on this in seven years, but considering this has no source and is exactly twice the dimensions of post #1555408 means this is very likely a waifu2x upscale.
It isn't the same image but slightly less cropped. It also predates Waifu2x and has no resizing artifacts.