Yes, via the web platform. Do as follows:
Click on rounds in the menu on the left in your project view
Click on concluded
Click on the round you want to edit in the list of completed rounds
4. Drag the mouse pointer over the form and edit it will appear as an option.
5. You can edit all the information and add and remove images from the form.
6. Click on save
NOTE! The original report is the one that is sent out to everyone when the round is completed and it will not change when you make edits, only the updated reports are edited.