For the group show Balance, young sculptor David Mazza installed his fabulous pieces throughout the building as well as in the sculpture garden outside, where he put a trio of major pieces. Mazza's abstract compositions, in which both straight and curved metal bars and tubes are precariously stacked on a pyramidal base, visually express the meaning of the exhibit's title. Even though he's still wet behind the ears and not long out of college, Mazza can already be regarded as one of the most talented sculptors working in Colorado.