Hello

I wanted to submit an entry to the Halloween screenshot contest, so I did but my picture isn't showing properly in my entry.
Is there any way I can edit my post so I can add an imgur link too or if anyone can tell me how to make my picture actually appear in post? I know most forums have rules against double posting and im worried that this first post with no picture would be accepted as my entry anyway
Like the only time I get to enter one of these and I screw it up (((((