Graphic Designs for Landing Page/How-It-Works page

I am looking for the full graphic designers to create new graphics for the landing page that illustrates how the web site works. The web site is an online market place that allows people to barter services. The types of concept/feel/look mirror those exhibited in the following websites: 1) [login to view URL] 2) [login to view URL] 3) [login to view URL] The How-It-Works graphics probably include 3-4 simple designs that illustrate how people barter (e.g., (1) graphic illustrating two people "A" and "B" confirming the barter; (2) graphic illustrating "A" working on "B"'s house and "B" working on "A"'s house (these could be two graphics, though combining them into one is preferred); and (3) job is done, and A and B are both happy). For color scheme, you can take a look at our logo at www.tradegig.com. The graphic colors should be consistent with the logo color and branding. If you have any questions during the bidding phase please create a message. Please be certain to provide a link to your portfolio when bidding as this will be the major decision making variable. If your work is satisfactory, I would like to ask you to design our buttons as well. Thanks.