Design Advertising Materials for a Fantasy Role Playing Game

We are in need of a part time artist who can take on creating various marketing material we need, from banner ads, to featured images for blog articles, to marketing material for social media promotions, to informative imagery for our website. The work is for a fantasy-based role playing game. Think Lord of the Rings, The Hobbit, Game of Thrones, etc. The requirement is for you to be (1) An Artist who can illustrate fantasy characters and objects (2) A Designer with a keen eye for organizing visual information in an appealing way (3) Expert in Photoshop/Illustrator and can deliver high resolution imagery (4) Knowledgeable of what works and what doesn't when it comes to the use of visual content across various mediums like Social Media, Blogs, etc. (5) Can deliver with quick turnarounds of 24 hours or less (6) Passion and knowledge for games and/or the fantasy RPG space is always a plus