The Image screen element works best when pointed directly to an Image record in the database. In other words, if your data model has a reference column to the Image system table, then you can select that reference column in the “Data Model Field” input and then you’re done! The Additional Query Fields will automatically fill in what you need, and the Image component is set up to look at the data form the selected data path to find the URL, Thumbnail URL, and Image Name that it needs.
If you need to configure an image with just a URL, then you can use the “Source” input in the “Advanced” property section instead. This will override any data that is in the form at the specified data path.