To add an Image Field to your Module or Content Model, Head to Models, select either Content Models or Modules, then click the '+ Add Field' button shown below.
Then do the following:
1. Enter Field Label and Description
2. Select if you want the field to be Required by default.
3. Select the Text Field Type
4. To add restrictions and validations like File Size, Image Width & Height to Images, you can specify parameters in Field Properties - these are not required fields but are recommended for best practice
5. If you want to further customize File Types Validation Message, File Types, or select Default File(s) and/or Default Upload Folder(s) expand Advanced Settings
6. Click 'Add Field' and you are DONE!