In general D.Va - centered fanfics (excluding inappropriate parts), D.Va is often portrayed as a strong and determined character. She's a skilled mech pilot, so she might be shown making quick decisions in combat situations. For example, she could be depicted outmaneuvering her opponents with her mech's agility. Also, her loyalty to her team and her sense of duty are usually emphasized, like she would never abandon her comrades in the face of danger.
One key element is her status as a professional gamer. This formed the basis of her skills and popularity. Another is the threat to her homeland which led to her transformation into a mech pilot. Also, her ability to transfer her gaming skills to combat is important.
D.Va's origin story is about a young woman who was at the top of the gaming world. She was so good at gaming that when the time came to defend her country, she was a natural choice to pilot the mech. Her origin shows how her skills in the virtual world translated to real - world combat capabilities. In the story, we see her transition from being a famous gamer to a fearless mech pilot, all while maintaining her charm and popularity. It's a story that blends the digital and physical realms in a unique way.
I'm not sure specifically what the 'hanzo graphic novel' is about as there could be many with that name. It might be about a character named Hanzo, perhaps his adventures, his life story, or his role in a fictional world.
There are Hanzo fanfictions that put him in alternate universes. For instance, in a steampunk - inspired Overwatch world, Hanzo might have different weapons and a different appearance. He could also be in a world where the Omnics and humans have a different relationship than in the canon Overwatch universe, and these fanfictions would explore how he navigates such a different world.
D.Va is a former professional gamer who became a mech pilot to defend her homeland. South Korea was under attack by the omnic threat. She was recruited due to her exceptional reflexes and gaming skills. Her mech is called Tokki and she's a symbol of hope for her people, fighting bravely against the omnics in the name of South Korea.