A picture can only be good as its source.
I tried to find an example on fanimekam but not sure what you’re talking about. Your original pictures are reduced a couple of pixel to fit into the width of the column…
If you want them to be more crisp re-render them with a piece of software in the with of the column, use them as an article picture and and add a second, bigger one in the media library to use in the article itself.
Alexander @ http://www.mouseclick.com