In the comics, Hiccup and Astrid's relationship is explored deeper, and their individual skills and personalities are emphasized. The art style also gives a unique perspective on their world. However, some plotlines might deviate slightly from the main movie story.
The comic versions of Hiccup and Astrid offer expanded backstories and additional challenges. Their interactions are more nuanced, and the visual representation can vary, but the core essence of their characters remains intact.