FORT WORTH, TX.- A detailed scale model of Renzo Pianos design for the Kimbell Art Museums new west building is now on display in the Museums lobby. The model is beautiful, commented Eric M. Lee, the Museums director. It will provide visitors with a clearer understanding of how the new building relates to the Kahn building and how it will be positioned in the landscape. The new Piano-designed building consists of two connected structures: the first, facing and echoing the west front of the Kahn building; the second, running parallel in the rear. A spacious, travertine-clad lobby containing a café, store, and coat-check occupies the center of the front pavilion, with major exhibition galleries extending to the north and south. A third gallery, as well as an auditorium, library, and education center, will be housed in the rear pavilion, which will be topped with