Within a single status widget you could create an HTML-table that consists of three columns. Each of which can contain a different image. However, in the end, the width of that widget is limited to to the column width of the dashboard.
Also, I am not sure that it is possible to create clickable images that trigger an action.
Finally: If I am correct, I see that you are referring to images uploaded via the Gallery app. You might want to check my earlier post on referencing images in the Galley app. Your current reference will most likely not work anymore after a restart of your Homey.
