Simultaneously Assigning Brushes to Multiple Images on a Widget

I am currently in the process of making a luck-based card game based on the card game blackjack, which makes use of grids of cards.

With the two integers - Randomizer and CardNumber - set to 1 as the Minumum for the two nodes that randomly select from the two ranges, the program determines which suit of cards will be played.

Then, the CardNumber is used to decide which card should appear as the image.

So my question is this: what’s the fastest and least complicated way to assign images to every image for each card, as shown here?