Design einer Facebook-Startseite

I am German, but I think I will do this in English so we have a wider range of designers to choose from. We are trying to design a brand page for Facebook and I think think we have pretty clear ideas about how we want it to look like, but we need a professional to give an extra touch. The idea is to have our logo as the profile pic and a Cover pic that incorporates 1) a call to action, 2) 3 pics that explain the 3 steps to use the product, 3) our transparent logo and the slogan below it. We have an awesome wave pic that we would love to use as a background as well. It's quite a lot of content, but it's a new product and we would like people to understand it and also give them an incentive to sign up and follow us. We need the same thing for Twitter and Instagram, but it can be very similar to the one in Facebook, so adapted