How can I create these design ?

Hello!

Try to use the tagdiv Composer builder or you can use an extra plugin for that. A shortcode can be inserted also by using the element called “Column text” or “Text with title”. “Column text” and “text with title” elements have a button called “edit content” and if you click on that button, the WP Editor will open, and you can add some text/code/shortcode there. Close the WP Editor from X, save the changes from Composer and view the page to see the changes.

Thank you!