The size difference between our galaxy and our planet is ~14 orders of magnitude. For a planet to have the same dimensions as in the picture, it must be proport

The size difference between our galaxy and our planet is ~14 orders of magnitude. For a planet to have the same dimensions as in the picture, it must be proportionally closer. That means if these galaxies from the image are 1e10..1e11 light years away (whether you guess to ignore the expansion or not), a planet must be 1e-3..1e-4 light years away, which barely covers the distance to Pluto. Of course the above doesn’t account for lensing and who knows what else, but you get the idea. (If my math is correct)