By default, your WEB POS settings will hide product images on the cart (see image below).
However, you can turn this setting on and show product images on the cart.
To show product images on your cart, please follow these steps:
Open the left-side menu by clicking on the three stripe lines on the top left corner
Click on Settings and select "CARTS" tab
Enable the "Show products image in cart"
Your cart will appear like the image below