After receiving feedback on his magazine pitch presentation, the author made two key changes:
1) He added more information about future magazine cover designs and the magazine's budget plan to demonstrate financial viability.
2) He included more details relating the magazine to Maslow's Hierarchy of Needs theory and Katz's Uses & Gratifications theory to better explain the target audience.
These changes provided more context and realism to help buyers understand and invest in the magazine idea.