HELP with Fabric!!!

So this chair was given to me, by my lovely granny with the instructions to make it my own!

However, I need help with Fabric, I don't even know where to begin!!! I love this chair, love projects and even have someone who will recover it...I just don't know where to begin on color, texture, brands, etc... By the way this chair is one of the most comfortable ones I have ever set in - so soft and cozy!

Any suggestions anyone??? ~M