Create downloadable brochure

My company is a mobile software development company. We need a 3 or 4 page downloadable brochure to be created. This brochure will be provided to prospective clients during our sales process. We already have a basic layout started, but it needs to be modified. We will provide some guidance on what we like / don't like, but would appreciate input from the artist. All text copy will be provided by us once the layout is complete. Basic layout file (PDF) will be provided to bidders we are interested in. It is expected that this brochure should take no more than a week to complete. All final work files will be provided to us upon completion, including PSD files, and all photos / graphics used in the design. Please provide examples of brochure work you have created. In many previous graphics projects, bidders have provided us links to their main portfolio and we have to dig to see examples, but please provide direct links to your brochure and layout work. This will greatly help us in the selection process. Also, it is critical that the artist understand written English fluently, as clear communication for this project is key.