After running jss deploy into your Sitecore, you don’t have any image showing on your Website.

If you can see all image in your Sitecore instance. Then check your browser console. If it shows 404 for all media files with a standard media Sitecore URL format : -/media/…

When working with JSS the media URL format should be : -/jssmedia/your-jss-appname/…

So make sure you already follower the Post installation instruction of JSS Packages :

Make sure to add the following to your web.config (system.webServer/handlers section):

<add verb="*" path="sitecorejss_media.ashx" type="Sitecore.JavaScriptServices.Media.MediaRequestHandler, Sitecore.JavaScriptServices.Media" name="Sitecore.JavaScriptServices.Media.MediaRequestHandler" />