Artwork not showing up in Libraries

I am definitely a newby although I have been using Kodi for at least 10 years so I guess that could say I am a slow learner or just not that bright. I have Kodi on my Windows 10 PC. I have Kodi on my NVIDIA Shield Pro attached to my TV. I made an SMB connection through my network and can now access picture, music and movies from the PC. My PC has wonderful artwork for practically every movie or album. But when I access it from my smb connection to the TV I get everything but no artwork. Can someone tell me where I have gone wrong? Thanks in advance. I am currently running Omega vers. 21