Colour scheme and themes in my project

Within my project I'd like a reoccurring theme to appear throughout my website design, poster and final product. I feel this would give my short film a unique recognizable aesthetic that stays consistent throughout. Most films and media productions in general have their own aesthetic that stays present throughout, I'll go through a few to get an idea on how to achieve this myself.

 

Throughout both of these images, not only have the producers decided to use the same pink and green colour scheme, they have also used the same art style/filter on them. A lot of horror films have quite obscure styles and conventions so when I'm creating my own poster and website, I'll keep it in mind to have a certain filter or art style that is present. 

The fonts and typography used are also consistent throughout although there is a few fonts. The actors' names in the poster are written in a font that I feel fits the theme of the film a lot more, whereas the title of the film itself is in all caps and bold colours. Using multiple fonts to convey different things is an aspect I will also take into account.