Load theme when clicking on single picture within a post.

Hi, I was wondering if there was a plugin available to be able to load the rest of my theme when clicking on a single picture within a post.

Currently, when i click on a single picture within any post of mine, it just loads the https://mysite.com/wp-content/uploads/date/my-picture.jpg with no css or theme loaded.

Is there a way to make it load https://mysite.com/date/postname/my-picture/

Here is a link of my site with just the single picture loaded.
https://badsentinel.com/wp-content/uploads/2012/10/life-hacks-1.jpg

Here is the post that it falls under.
https://badsentinel.com/2012/10/26/life-hacks-are-for-everyone-43-photos/

Please let me know if I need to explain alittle more.

Thanks in advance