If ht edefault bootstrap building block are not working you can always add custom styling or css classes in mendix. This is available for almost any objects that you can see in the page (views, divs, layouts, inputs etc).
Try using the "layout grid" widget to create 2 columns side-by-side. Then drag your image into the left pane, and your text widgets into the right pane.
Is that what you're looking for? If not, maybe you could edit your post and add a few images.