Upgrade 2 sites from Drupal 7 to Drupal 8

Need assistance upgrading 2 sites from Drupal 7 to Drupal 8. Process has begun, but there is issue with Drupal entities: The way 7 vs. 8 handles entities it’s appearing that custom modules have to be built and its a pretty specific process. The main issues are images and views The main issue is as follows: D7 version of nodes have images and/or slideshows on most all pages, for example: [login to view URL] vs the version I imported here: [login to view URL] It’s pulling in the text but not the images and views. Another example D7 version: [login to view URL] vs D8 [login to view URL] On static pages where I manually add images things seem to be ok ie. [login to view URL] vs [login to view URL]