Review and Correction of SEO Errors

The site on the portal Prom.ua, the owner is engaged in professional fertilizers for plants.
The task is to improve visibility in the PC by correcting SEO errors, improve visibility in the Prom.ua catalog.
The work is done:
1 . Mini-audit (only content analysis, commercial and technical factors);
The 2nd Correction of errors in the audit data;
3 . Write the text to the main;
and 4. Google Analytics, Google Search Console, Yandex.Webmaster
and 5. A small reorganization of the site.
The results in the form of changes in the dynamics of the visibility are well seen on the screen.