One great Henry Turner OC fanfiction could be about his adventures in a magical realm where his unique skills and the original character's traits combine to face a powerful villain. For example, the OC might be a wizard who teams up with Henry Turner to defeat an evil sorcerer threatening their world.
First, think about the character of Henry Turner. What are his main traits? Then, create your OC. Decide on their appearance, personality, and backstory. For example, if Henry Turner is brave, your OC could be more cautious, creating an interesting dynamic. Next, come up with a plot. It could be something like they are on a quest together.
One common theme is adventure. Since Will Turner is from the Pirates of the Caribbean world, many OCs are introduced to join him on his seafaring adventures. For example, they might go on a quest for a hidden treasure or battle against new and dangerous pirates.
A common theme is redemption. Often, the OC helps Cole Turner on his path to redemption. Another theme is love. It could be a romantic love or a deep platonic bond between the OC and Cole.
Since I don't know of any actual 'henry turner and carina smyth lemon fanfic', it's hard to say. But generally, in a fanfic, the characteristics could include unique interpretations of the characters' personalities, perhaps new storylines that focus on their relationship in ways not shown in the original source material.
One great Will Turner OC fanfiction is 'The Adventures of Will and His New Companion' on FanFiction.net. It creates an interesting new character that has a unique bond with Will Turner and takes them on a series of exciting adventures at sea.
In 'Henry Danger Henry x OC fanfiction', a frequently seen theme is the rescue scenario. The OC might get into trouble and Henry has to save them, which then starts their relationship. There's also the theme of teamwork. They could work together to solve problems in the city, like helping out at the local community center or dealing with a new type of threat. Additionally, the theme of family acceptance might be there. Henry's family plays a big role in the show, and the fanfiction could explore how his family accepts or reacts to the OC in his life.
One great Cole Turner OC fanfiction is 'The Enchanted Bond'. It has an interesting plot where the original character forms a unique connection with Cole. Another is 'Cole's New Ally' which shows how the OC impacts Cole's journey in a different way.
Another way is to give Henry a backstory. For example, he grew up in a family that didn't have much money, but they always made the best of what they had with simple home - made pastries. This made him appreciate the value of baking from a young age and also gave him the motivation to learn and create more elaborate desserts. You can also show his character growth through his relationships. If he has a mentor in the patissiere world, his interactions with that person can shape him. At first, he might be shy and hesitant to take advice, but as he gains confidence, he becomes more open - minded and willing to learn new things, which helps in his character development.
I'm sorry, but I'm not aware of any specific 'henry turner and carina smyth lemon fanfic'. You could try searching on fanfiction websites like Archive of Our Own or FanFiction.net.