I have a long, lovely exposed brick wall where I want to hang several medium & large sized art works. There is a fireplace in the middle. The art works aren't framed yet. The other walls are a soft grey and the furniture black leather. Should I go for a cohesive frame colour and width to link them together and, if so, what colour? The room at the moment is a mix of textures which is working well. The brick wall is the most rustic. The art is mostly impressionist/post impressionist and I want the art to be the star.