In the media gallery, service providers can upload images individually. The images are made available to the marketplace operator to promote the service. The images can be uploaded directly from the service provider's computer or made available via a link from the service provider. 

My computer: The service provider selects the desired image from his computer. Copyright information must also be provided for data protection reasons. 

URL: The service provider enters the URL for the image, as well as the copyright information.

In the media gallery you can select different views on the right side next to the avatar. If you want to delete something, click on the white box in the image (per view) or in the list on the far left.