Create Brand Guidelines

We are a start up Gen Y not for profit and we want to revitalise our brand and develop a clear set of simple brand guidelines across - logo, colour, images and also have our designer help us select /create hero images for our website and social media. As we are a charity we need to inspire and engage our audience and we want someone who understands this and wants to make a social impact by helping us to reach more young people and connect them to charities - full brief is attached ( we have lots of base collateral and we just need it refined) pls read and ONLY respond if you understand what is required -you will need to show us examples of other brand guideline docs you have created for clients - contact me with questions. our website is [login to view URL] - check this out pls social media they need to be able to use canva so I can get them to make templates that other people can change - they need to be able to show me previous brand guidelines they have done and they need to speak and understand english we already have logo and colours I just want someone to refresh and update and develop all the versions we can give to people to use and give them instructions on how to use etc - it doesn't need to be very complicated but a basic document