"Create an artistic family tree featuring individual plaques for the Gamage family, mounted on a wall. Each plaque is crafted from richly textured wood and includes elegantly inscribed names and roles of each family member. Incorporate a blend of English and indigenous stylistic elements, with ornate borders and cultural motifs that reflect urban shamanic themes. The layout should display Thelma and Robert Gamage at the top, followed by their descendants: Bob Gamage with Jackie, Randy, and Gary; Richard Gamage with Pastora, Alana, and Christi; Elizabeth Gamage Arca with Jerry Arca. Aim for a formal, culturally enriched, and visually coherent design."