If you want extend your design/layout and if you want to show a thumbnail within a column you can use custom post fields to resolve this requirement. Open your post (e.g. “Kawasaki Ninja ZX-12R”) and fill out the fieldname (e.g. “Logo”) with this value:
<img src=”https://www.YourDomain.com/wp-content/uploads/2016/08/small-image-kawasaki.jpg” alt=”Kawasaki” />
The value is just the path to the image. Afterwards put the fieldname “Logo” (custom post field) into your “cols”-argument in the shortcode and the thumbnail belongs to the table.
Note, be carefull
If you put images into a DataTable you need to take care about the file size of each images. That’s important. It’s strongly recommed to consider a particular view on each image. Optimize your image (thumbnail) before you move it into the DataTable. It should really be a small file size due to the performance of your website. Otherwise, if you use a regular uploaded image without any doubt, you accept a risk (it would certainly slow down the website if a lot different images in a lot of rows appear inside the table ).