No u can't. Delete button doesn't work for normal users. Before you say "well that's dumb, why even show it then" well that's a request I've put in for a while ago so we're working on it.
Technically if you are the author of your own pic, I guess like if it was a selfie of you, then you can request deletion by flagging the image.
Also I've already deleted that pic because it's a dick pic and dick pics aren't allowed.