Microsoft Teams MessageCard (Connector card) doesn't display Images

Question

I'm testing out the Message Card type payload, but Images won't show. Am I missing something?

https://learn.microsoft.com/en-us/microsoftteams/platform/task-modules-and-cards/cards/cards-reference#example-of-an-office-365-connector-card

Screenshot

        {
            "title": "Images",
            "images": [
                {
               "image":"http://connectorsdemo.azurewebsites.net/images/MicrosoftSurface_024_Cafe_OH-06315_VS_R1c.jpg"
                },
                {
                    "image":"http://connectorsdemo.azurewebsites.net/images/WIN12_Scene_01.jpg"
                },
                {
                    "image":"http://connectorsdemo.azurewebsites.net/images/WIN12_Anthony_02.jpg"
                }
            ]
        }