I have a few things for you to check:
- first of all, please, check if your images were uploaded to correct folders and subfolders. As you know Magento has strict requirements concerning that.
- in case if you do not know if all the images were uploaded, you can use the option to diagnose it. Images diagnostics option is available in the application called Store Manager for Magento. You can take a look at it here -
There is 14-days free fully functional version, so you can try it out.
- next if your images were not uploaded, you can try to re-upload them using the application I mentioned above - Store Manager.
- in case your images were uploaded properly, I advice you to check the template of the page where you see - <img src=\”
There may be some old developers URLs or it emerged while copying from development site if you did so.
Hope it was useful.