It seems you want to change the breadcrumb or heading image of this item. Well we don’t have option to set header image individually for shop items but you can change globally for all shop items from your theme option. Just go to Appearance->Teriz Options->WooCommerce Settings & from there scroll down to Single Shop Settings section & you’ll be able to change the header image. Check the screenshot: http://prntscr.com/mty6iq
Also if you want to change for specific item then you need to use css in that case.
Hope this will help you.