We think you want to customize left sidebar content on shop page.
It' s easy. That area is shop page widget area.
Please go to admin->appearance->widget.
Then, you can see the "Shop filter catalog" & "Shop sidebar" widget area.
In there, you can see some widget contents. Those are all shop left sidebar content.
So for example, if you want to remove the image, please delete the image widget.
If you have any other questions, please let us know again.
Best Regards, C-Themes