From Destinypedia, the Destiny wiki
Oops. I meant the tag found on this page. Apologies for the confusion.
Technically, you yourself cannot delete your duplicate images. However, admins and/or patrollers (I myself am an admin) have the ability to do so. All you need to do is tag your images using the tag found here, and then people like myself or other wiki staff will delete them for you. Again, nice work and thank you for joining us and for contributions!
Just a friendly word of advice--Please don't go uploading images unless they do not already exist. Some of the images you have uploaded already currently in their respective articles. Please look them up to ensure you aren't uploading a duplicate image. Thanks for joining us!