Gabriella Polony Mountain's work includes four major themes. The first three themes are clearly recognizable as the Cosmos, Nature, and Figural works with the fourth theme encompassing history, philosophy, and culture. In her life as an artist, Polony Mountain worked with many different medium including mosaics, weavings, sculpture, stained glass, and repousse. Repousse, or repoussage, is a metalworking technique in which a malleable metal is shaped by hammering the reverse side of a sheet a metal. On the other side, a low relief design is revealed. "Dragons Door" continues with Polony Mountain's interest with large geometric forms and swirling lines. The "dragon" in this repousse piece is more metaphorical rather than figural, perhaps a reference to the Dragon (Draco) constellation. If we follow this line of inquiry, the concentric oval forms in the upper mid-section with the small circle in the center could represent the northern constellation of Draco known as the "Cat's Eye Nebula." The swirling lines and small circles and ovals throughout the center of the door could represent the many galaxies, planets, and moons that comprise the Draco Constellation. The southern part of the constellation is referred to as the Hercules-Corona Borealis Great Wall and a reference to this can be seen in the ray-like lines that stretch forth from the lower left section of the door. Next to this is a reference to the Tadpole Galaxy where a small encircled fish-form is visible. This panel is a beautiful example of Polony Mountain's attention to detail, knowledge of the cosmos, skill with the repousse technique and her ability to create movement within an otherwise static material.