Dennis draws constant inspiration from floral forms, nature, and feminine beauty. His work focuses on wearable miniature glass and sculptural forms, with a particular passion for three-dimensional murrine, where layered imagery and depth emerge within the glass itself.

Dennis pioneered three-dimensional murrine in borosilicate glass. When he began in 2024, there were no known attempts to make 3-D murrine in boro. He adapted the multi-step soft-glass method himself, reworking several steps to suit borosilicate, and in boro those changes give an even cleaner cane. He has taught at The Studio of the Corning Museum of Glass twice a year since 2023, first implosion and, since May 2025, his 3-D murrine in borosilicate. His boro murrine now bloom in his marbles and pendants, and in the canes he makes for other glass artists.

Using techniques such as implosion, murrine construction, torch-blown vessels, and off-mandrel sculpting, he creates works that balance technical precision with organic elegance.