Get Images (if any) from Microsoft Lists and post to teams via Flow

McJasem instead of the Teams Post a message action you need to use Post your own adaptive card as the flow bot to a channel.

The sort of JSON you would need, including for the image, is as follows:

{
    "type": "AdaptiveCard",
    "body": [
        {
            "type": "ColumnSet",
            "columns": [
                {
                    "type": "Column",
                    "items": [
                        {
                            "type": "TextBlock",
                            "text": "REI News",
                            "wrap": true
                        },
                        {
                            "type": "TextBlock",
                            "spacing": "None",
                            "size": "Large",
                            "weight": "Bolder",
                            "text": "@{body('Get_file_properties')?['Title']}"
                        },
                        {
                            "type": "TextBlock",
                            "spacing": "None",
                            "text": "@{outputs('Compose_First_Published')} - @{outputs('Compose_Contact')}",
                            "isSubtle": true
                        },
                        {
                            "type": "TextBlock",
                            "size": "Small",
                            "text": "@{body('Get_file_properties')?['Description']}",
                            "wrap": true
                        },
                        {
                            "type": "Image",
                            "url": "@{body('Get_file_properties')?['BannerImageUrl']}"
                        }
                    ],
                    "width": 2
                }
            ]
        }
    ],
    "actions": [
        {
            "type": "Action.OpenUrl",
            "title": "Go to news article",
            "url": "@{body('Get_file_properties')?['{Link}']}"
        }
    ],
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.0"
}

This would give you a result like this:

Rob
Los Gallardos
Microsoft Power Automate Community Super User