If you go to the page of any of your images you’ll see an Edit button below the image. This will take you to a page where you can edit the Title, Description, Tags and Price of any image on your profile.
STEP 1: Locate the 'Edit' button underneath the image:
STEP 2: You'll be directed to this page where can make your desired edits:
Remember to click 'Save' when you've finished making any changes.