Design a Website Mockup

I am looking to revamp the website for my software company, Barcode Generator. ([login to view URL]) We have three programming languages we support and need a way to let the user know which language they are looking at (PHP, ASP.NET, or Node.js) on the current page. We also support two languages (English and French) and would like a small menu where the user can select their preference. We do not have any formal brand guidelines, but would like the note the following: Logo - Our logo should be displayed on each page. Colors - We are open to suggestions and have been looking at using a dark mint green prominently in the redesign. See attached file for included examples. The overall design should be fluid and elements should be easy to make responsive once coded. We like websites that lead with a strong/bold/eye-catching image. The final deliverable will be layered .PSD files of the website's main pages: the landing page, download page, demo page, and other pages that contain a menu on the left. Each page should contain key links in a header - Download, Demo, Developer's Guide, API Reference, and Purchase. Home Page: The main page of our website will give a concise and user-friendly overview of our products. It should be crisp and clean. Download Page: One of our most visited pages. Should have a prominent premium download login section and a free downloads section (no login necessary). Demo Page: The demo page is the 3rd most visited page of the site. A user must be able to select which barcode they want to generate. Either based by name (because they know what they want) or by picture because they don’t know what type of barcode they want. They would fill out a form then click “generate”. Without refreshing the whole page, we should be able to see the resulting programming code and barcode image result. Other Pages: Should contain a vertical menu that stays on the left side of the page - a one-level menu with a header. This menu should be able to accommodate varying numbers of menu items. These pages will mainly be used for descriptions of each product. Please see attached Word file for home page content and further design notes. I have also attached a rough .PSD file containing a plain mockup just for a reference of site elements and a logo file. I would love to see an outline of your design process from start to finish and view a portfolio of your past work. Looking forward to working with you! Thanks, Joshua