Muliarchuk worked in the field of easel and monumental sculpture, for which he used marble, granite, sandstone, bronze and artificial stone.[2][3][4]
The author of about 50 monuments and more than 180 easel sculptures, monuments, among others:[2][3][4]
- soldiers-fishermen (1969, Temryuk, Russia),
- Hero of the Soviet Union O. Zhadov (1985, Ternopil),
- Taras Shevchenko (1989, Verbovets, Kremenets Raion; 1993, Yabluniv; 1999, Tovste; both – Chortkiv Raion),
- Ivanna Blazhkevych (1989, Denysiv, Ternopil Raion),
- Stepan Charnetskyi (1991, Shmankivtsi, Chortkiv Raion),
- Ivan Franko (1992, Tsyhany, Chortkiv Raion),
- Denys Lukiianovych [uk] (Horodnytsia, Chortkiv Raion),
- Vasyl Simovych [uk] (both in 1993; Hadynkivtsi; both in the Chortkiv Raion),
- Pavlo Dumka (1999, Kupchyntsi, Ternopil Raion),
- to the 2000th anniversary of the Nativity of Christ (2000, Bila, Ternopil Raion)
- Independence (2003, Monastyryska; 2006, Romanivka, Ternopil Raion),
- soldiers of the UPA "Pokrova" (2005, Sapova, Ternopil Raion),
- To the Fighters for the Freedom of Ukraine (2006, Vasylkivtsi), Bishop Hryhorii Khomyshyn (2008, Hadynkivtsi; both – Chortkiv Raion),
- "Vitta – bohunnia zhyttia" (2009, Anapa, Krasnodar Territory);
series of portraits:
- "Trnopoliany" (1970–1990);
busts:
- A. Yelchaninov (1980),
- Hero of Socialist Labor A. Karpenko (1987),
- Taras Shevchenko (1989, Horodyshche, Ternopil Raion; all – Ternopil Oblast);
compositions:
- "Pratseiu zvelycheni" (1988);
memorial plaques:
- Severyn Dnistryanskyi (1991),
- Vasyl Stefanyk, Osyp Vitoshynskyi (both – 1992; all – Ternopil);
emblem:
- "Nauka" (Chortkiv Institute of Entrepreneurship and Business, Ternopil Oblast, 2004).
