- Lily was that side of Harry who wanted privacy and hated people talking about him, especially lies.
- James was that side of Harry who thought it was funny people think he had a dragon tattoo on his chest
- Lily was that side of Harry that had to break up with Ginny to protect her
- James was that side of Harry that kissed Ginny back in her bedroom without thinking twice
- Lily was that side of Harry thought poetic things about his loved one. Metaphors, comparisons with the sun, etc.
- James was that side of Harry who kept building up dramatic sceneries in his head
All of this to say that I base my headcanons about James and Lily primarily using canon Harry as reference.
Here the headcanon of why I draw Lily with a scar on her lips:
- She with her family had a car accident during a summer, her parents passed away but she and Petunia survided.
- After that year, she grabbed on to her feelings for James. The thought of Lily losing her parents (because Harry doesn’t have grandparents) is heartbreaking but it can also explain why she married young (not only because of the war.)
- It can also explains why Petunia lied to Harry that HIS parents died in a car accident.