It's not working. D=
Might I suggest creating a PhotoBucket account? They're free, and it's a good way to share your art over the internet.
Just upload your art there, copy the direct link to the pics, and paste them on here between the images tags ( [ img ]pic url here[ /img ] without spaces).
Linking to your images is the only way to show them on here (I think it's to save space on the server).