If you just want to link to the larger image, you don't want it to be on a page. If it is, then link to the page. If you want people to go to the part of the page where the image is, place an anchor by it and link to that.

In all these cases, use the pick-whip to make your link after activating the chain icon in the inspector.

I'm not entirely sure you grasp the meaning(s) of 'link'.

When you place an image on a page, there is a reference to it in the code. A browser will follow that reference, find the image, and show it on the page where you want it to be. You could call that a 'link'.

Then there's the kind of link where someone is supposed to click, and they get redirected somewhere, or if you use an action then 'something' happens - such as an image elsewhere on the page changing. This is a 'hyperlink'.

I find it best to pull the image into the site window. Then put an image placeholder on the page. In the image inspector you will see 'Empty Reference!' Use the little whirly thing in the inspector to make the connection with the image in the site window. Then it will appear on the page.