There are fanfictions that might focus on the Huntsman's past in a Rated M context. Maybe it reveals his dark secrets or his experiences before meeting Snow White that shaped him into the person he is. This could involve his time in the army or his relationships with other characters in his past. These elements add layers to his character and can make for an interesting read.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). They have a large collection of fanfictions, and you can use their search filters to specifically look for Snow White and the Huntsman fanfictions with a Rated M tag. This will narrow down your search to the ones that are more mature in nature.
If there was a lemon fanfiction of 'Snow White and the Huntsman', it might take the form of a re - imagining of their story with a stronger focus on their physical and emotional attraction. It could be a story that dives deeper into the unspoken tension between them. Instead of just the typical adventure and power struggle against the Evil Queen, their relationship could be at the forefront, with new situations and challenges arising from their budding and perhaps more 'spicy' connection.
An alternate ending could be that the Huntsman sacrifices himself to save Snow White. He could step in front of a fatal blow meant for her, and in his dying moments, Snow White realizes just how much he means to her. This would be a tragic yet powerful ending, showing the depth of their connection.
First, it's important to note that if by 'lemon' you mean something with adult or inappropriate content, that's not advisable as it goes against many ethical and community standards. But if you mean a more 'flavorful' and unique take on the relationship between Snow White and the Huntsman, start with a deep understanding of their characters from the original story. Think about what could have been different in their interactions. For example, you could add more scenes of them alone, talking about their hopes and fears which could lead to a deeper emotional bond.
One idea could be that the Huntsman is from a different realm in the fanfiction. He has unique powers from that realm which he uses to protect Snow White in new and unexpected ways. For example, he can communicate with magical creatures that are native to his home realm and they help him in battles against the Evil Queen.
One main theme is the battle between good and evil. Snow White represents good, while the evil queen is the antagonist. Another theme could be self - discovery. As Snow White embarks on her journey, she discovers her own strength and power.
One interesting aspect in Snow White and the Huntsman fanfiction exploring the darker side could be delving deeper into Ravenna's backstory. Maybe she had a tragic past that led her to become so power - hungry. For example, she could have been wronged by someone in her youth, which made her believe that only absolute power could protect her. This would add more layers to her character and make her more than just a one - dimensional villain.
In Snow White and the Huntsman OC romance fanfiction, a great trope is the 'slow - burn romance'. This means building the relationship gradually over time. The OC and the Huntsman start as acquaintances, then friends, and slowly develop romantic feelings. 'Soulmate - like connection' is also a good one. You can write it in a way that the OC and the Huntsman feel an inexplicable pull towards each other from the moment they meet. And 'redemption love' can be used too. If the Huntsman has a dark past, the love of the OC can be what redeems him and makes him a better person.
The OC could be a fellow captive of the Mirror's evil plans. In this case, they would bond over their shared experience of being targeted by the Mirror. They could support each other, with the OC using her unique abilities to help Snow White escape from the Mirror's clutches. For example, if the OC has the power of invisibility, she could use it to spy on the Mirror and gather information to help Snow White.
The story mainly focuses on Snow White's journey. In the first part with the Huntsman, she escapes from the queen's evil plot. The Huntsman helps her find her way. As for the 'Winter War' aspect, it could imply a fight against the forces of evil during winter. Maybe it shows how Snow White and her allies have to endure the harsh winter conditions while fighting against the queen's minions to regain her rightful place in the kingdom.