I can't show the image I want to show!

I wrote (img=http://konachan.com/sample/a27402ed3ecabf0a89e96f476d21ab9a/Konachan.com%20-%20142063%20sample.jpg)
Of course, by the post of mine I used [] instead of ().

But I can`t see my image!!

If a thread like this already exists, i am sorry.