If you would like greater flexibility over the layout of your site, we suggest using a 1-column layout. Then you can utilize the Text widget (creating a horizontal section) and Columns widget (for your vertical section).
You can also add more Columns widgets inside the Columns widget - therefore giving you multiple columns.
The center divider of the Columns widget can be dragged to the left or right to change the size of the columns. You can also edit the margins by clicking Margins on the Columns widget. You'll see the top, bottom, right, left margin entry box settings displayed that you can edit to see how your text and/or images are altered.
We hope this will give the ability need to create a layout that will best suit your needs.