Poster Design and artwork

Seeking creative graphic designer, who can intrinsically get our brand feel and create a cool poster for our upcoming Christmas artisan markets. Our budget is for all of the work as detailed in the brief.

Terms: I would need the first phase of ideas submitted and then we can bounce back and review.
Deadline: Need the completed files in 7 days max.

United Colours of London Christmas Artisan Markets

Background:
We are running 4 artisan Christmas markets in London. The events are advertised on our sister site here,
http://ilovemarkets.co.uk/christmas-markets/apply-for-stall-christmas-artisan-markets-london/

Brand slogan: Uniting Creative Souls, Sharing Creative Vision
Our markets give small businesses the opportunity to share their passion and grow their businesses. Find out more. (in development)

Artwork Requirements:
- Need one overall poster design look and feel that we can use across our 4 different events. The market on the 7th and 14th is the same place, so essentially the poster can advertise both, so we need 3 separate variations of the poster design.
- It would be good to have some subtle design way to distinguish between each event, maybe a different use of colours for example.
- For each event we require the following formats:
A1 Poster/A6 Flyer/Square Instagram/social post/

See attached brief for more info and design guidance.