A frequent theme is secrecy. Danny has to keep his identity as a half - ghost a secret from Valerie for a long time, and this secrecy adds a lot of tension to their relationship. Also, the theme of redemption can be seen in some fan fictions. Valerie may have made some mistakes in the past, like wrongly targeting Danny as an enemy, and she has to find a way to make up for it. Additionally, friendship and loyalty are important themes as they both have friends who support or complicate their relationship.
One idea could be a story where Danny and Valerie have to team up to fight a new, powerful ghost that neither can defeat alone. They start off distrusting each other but as they face challenges, they learn to work together and gradually develop feelings for each other.
You can try Archive of Our Own (AO3). It has a large collection of fanfictions for various fandoms, including Danny Phantom. Just use the search function and type in 'Danny Phantom and Valerie Gray' to find relevant stories.
Since 'lemon' fanfiction is not suitable, I can't recommend any. But if you want to read some interesting Danny Phantom and Valerie Gray fanfiction, look for ones that focus on their relationship development, like how they might overcome their differences and work together. There are likely stories that explore their dynamic in a positive and appropriate way.
There is a fan fiction called 'The Haunting of Valerie Gray'. It starts with Valerie having strange dreams about Danny, which leads her to investigate further. As she digs deeper, she discovers secrets about Danny and herself. It's a really engaging read. Another notable one is 'Valerie's Redemption'. This story focuses on Valerie's journey to redeem herself after some mistakes she made in the past, and Danny plays an important part in that journey.
One plot idea could be that Danny and Valerie have to team up to stop a new, powerful ghost that is causing chaos in the town. They start off distrusting each other but as they face challenges together, they begin to respect and understand one another better.
I'm not sure who 'Valerie Cox' specifically is in relation to 'Pulp Fiction'. There may be a relatively unknown character or it could be a name associated with the production in some other way not immediately obvious from just the movie itself.
You can start by sketching the basic outline of her figure. Focus on getting the proportions right. Then add details like her facial features and clothing.
Valerie might use her red hood as a signal to the friendly forest animals. She could ask the birds to be their lookouts and the deer to lead any threats away from their hiding place. Peter, on the other hand, could train some of the smaller animals like squirrels to bring them news of any approaching danger. They could also make traps around their area to slow down any potential attackers.