That link opens to a "small view" image -- 561x449 pixels. When you click on the image it opens the "full size" image of 3000x2400 pixels. And, if you look at the properties of either, they both show the same file, the one for the larger image. So, that's what you get -- the smaller is a link to the full-size.
Here it opens the 3000px image straight away... (resized to fit the browser, but that's Safari at work)
But since it's a rather compressed jpg (and an image that compresses rather well, since there isn't all that much image info and not thàt much noise), it's only 640k.

