Simple Illustration of a dna double helix

I would like a nice double helix in two sizes: 500px and 64px . (See attached picture [login to view URL] for reference). The larger size should show more detail and equations and numbers where the bases (A T C G) are located . The smaller size should be usable as an icon and there not have the fine details. The two spirals of the helix should be green and orange. The exact hex colors, you should pick from [login to view URL] This large size should look elegant and the bases should have numbers and calculus symbols floating around them. Please include the word Watson in the first line of your bid if you would like to considered. Template bids will be ignored immediately.