Elementor Column Layout Customization

I need help troubleshooting creating a two-independent column layout on WordPress using Elementor on one page of our website. I can't seem to get the nesting right on containers, grids, inner sections, text boxes and get it to all line up right and the two columns to grow independently of each other, like the left one has more articles, and the right one has less webcasts.

I might need help with a couple other pages on the website later, if I can't figure those out.

Requirements:
- Each column will primarily display text and images.
- Columns should be responsive and adjust as needed on different screen sizes.
- Ability to add specific styles, such as background colors or images.

Ideal skills and experience:
- Proficiency with WordPress and Elementor.
- Strong understanding of responsive design.
- Experience with customizing styles and effects in Elementor.

Please share your relevant experience.

I've uploaded a sample layout, just as a layout example of something where the left column is larger and has articles, and I want a smaller column on the right side were I can have embedded webcasts.