Hello, @TFS,
To edit the image simply go to the Dashboard >> Appearance >> Widgets >> Cart area, there you will see the image, you can set it to change/remove it as per your need, and changes will appear on the cart page: https://postimg.cc/7f9WyDrj
1- In the Theme options >> WooCommerce >> Cart >> Cross-sell-products you can set the layout of the products “You may be interested” see image: https://postimg.cc/kDmCJnL5 further if you want to show the specific products you then you have to add the products you want, while you editing a product. In the Product option tab you will see the option check image: https://postimg.cc/QH7cpJ0m as you can see, I added 4 products I want to show, and here is the resulting image: https://postimg.cc/hJ2mSytD
2- It is coming from the block simply navigate to the Dashboard >> Static Blocks >> There you will see the block called “PreFooter grocery-market” check the image: https://postimg.cc/Js1tGNgG simply edit it as per your need, changes will appear on the frontend.
3- In order to solve your issue simply go to the Dashboard >> XStore >> Theme Options >> Theme Custom CSS >> Global and paste the below code at the bottom of the CSS box there. Check the image: https://postimg.cc/xkQr05F4
.cart-checkout-nav a{font-size:18px !important; font-family: cursive !important;}
Then save settings and check back to your site after clearing the browser cache. The result will appear like this: https://postimg.cc/yk32ctMG
Regards 8Themes Team.