Banner design for front page of e-com site

I would like to have a banner for the slideshow on the frontside of my e-commerce site. The size is 560x300 pixels and I want to be able to re-use the same banner with different products and offers. Attached is a screenshot of the current frontpage to get an idea for in which colors it will fit in. Don't use the current banner as an example of what I want! We are working with LED lighting and products that are friendly for the environment. What I need is this: - Placeholder where to put a product that is photographed on a white background, background removed from product - An alternative placeholder where I can put a square photo - Placehoder to place offer text - Call to actions available: Köp = buy, Prenumerera = subscribe, Läs mer = read more I would like to have 4 different backgrounds available.