Followed a pattern offered at lionbrand.com but changed the pattern and the design of the tank. The lines through the tank are created by using a combination of the shell stitch and the front and back double post stitches. The upper part of the tank through the shoulders is a half dble stitch, and dbl stitch. Here is what I came up with:
Bolero pattern from the stitch and bitch happy hooker book by Debbie Stroller. I decided not to add the cap sleeves.