The picture's being resized in the code for your post - if you click through on the pic, you see its source, presumably the size you want it, and definitely clearer.

Here's the offending code:

"width: 314px; height: 419px;"

The image is actually 695x931. You pretty much never want to resize graphics using height and width tags - make the picture the size you want it in a bitmap editor before you upload.