The images in the header - the logo and the mural behind it - were created by Michael and Violet Divine. The image draws on the suggestion of the name: Roots and Branches as the roots grow into the earth and the branches grow into the heavens. The mural, located at Raices y Brazos, is created with similar concepts in mind and is about the merging of the female and male aspects of creation.
More of the mural can be seen here: TenThousandVisions.com : Raices y Brazos Mural