Retrina Blog module is easy to use, with excellent SEO-friendly URLs, and fully-featured with everything that all websites need

• Compatible with OpenCart 4
• Compatible with JOURNAL 3
• Uses OpenCart's event system (no core files are overwritten)
• Fully SEO-friendly
• Powerful admin panel.
• Configure all your image sizes & description limit in the blog setting panel.
• Add users as blog authors and change blog page permissions for them
• Add blog tiles in the OpenCart admin dashboard
• Clean and responsive design.
• Add unlimited blog posts.
• Add unlimited blog categories
• Add unlimited blog authors
• Fully comment system for blog posts (reply and like comment)
• Like blog posts.
• Share blog posts
• Add a review for blog authors.
• Blog post image and additional images.
• Video blog post (supports YouTube, Vimeo, HTML5)
• 3 built-in widgets:
  1. Blog post tabs
  2. Blog post tags
  3. Recent blog posts
  4. Popular blog posts
  5. Blog posts with the most likes
  6. Blog category tabs
  7. Blog category tags
  8. Recent blog categories
  9. Popular blog categories
  10. Blog author tabs
  11. Recent blog authors
  12. Popular blog authors
  13. Blog authors with the most rate
• Three layout structures for widgets (grid, list, leading list)
• Search blog posts by name and tags
• Search blog categories by name and tags.
• Blog post tags & blog category tags
• Separate blog post landing page & full page.
• Separate blog categories landing page & full page
• Separate blog author landing page & full page
• Separate blog author landing page & full page
• Easy installation and setup
• 24/7 support.

Retrina Blog has specefic dashboard.you can see image below.

you can chabge image size, such as blog post image, autor image, categories image and ... from Retrina Blog > Setting .also control limitation of blog text caracters and orher setting from there.for better understand you can see image below.