In the Style panel, you will find 2 loop divs: Loop with Images and Loop with Characters. Put your content in the first loop (the loop with images)
Both loops (decrypted with images and encrypted with characters) are duplicated using JavaScript code to make sure we have enough cards to play the Flow animation infinitely. Just make sure you have the same number of cards in both loops.
The CSS file (flow-css) is very important! So don't forget to copy it as well. All variables from this file are directly related to javascript: for the calculation of the flow width or encrypted characters amount calculation (e.g.).
If you want to change the width or height of the card, or the gap, go to flow-css and edit the variable values. Since Flow is built using EMs, you can change font size (even in Webflow) of the <Flow div> and everything will scale accordingly.
Don't change the --variables names, or at least make sure you edit the script (/body) with the new --variables.
Original idea by Evervault