Hagop Hagopian works with a unique style that is often praised for its pursuit of perfection. Hagopian has a linear approach to composition, often accented with serene and subdued colors. His works often exude a sense of nostalgia and silence and in his landscapes one can witness Hagopian’s deep devotion to the Armenian countryside. This affection translates into careful brushstrokes and a graceful treatment of each natural element. The emotional message is, as usual, toned down, and the paintings create a serene atmosphere, electrified from within. Hagopian's poignant love for his country is clearly evident in his paintings which have an inexplicable power that accounts for the aesthetic properties of his work.
In his later periods, Hagopian encompassed animated mannequins and sculptures into his paintings to display human emotions. Being devoid of cultural and personal detail, the mannequins and tools offered the artist universality and paved a new course in understanding and displaying essential human experiences.