(Kadamba Kanana Swami, 05 June 2016, Radhadesh, Belgium, Caitanya Caritamrta Madhya 25.57)
The all blissful Supreme Personality of Godhead is eternally young and not plagued by any imperfections, not plagued by an old cranky body and not ugly either. Some incarnations of God are certainly not the most beautiful. It is said that various incarnations of the Lord have different qualities of the Lord. Maharaj Pritu had the pālana-śakti, he was empowered with the power to protect the earth. Mohini-murti and Balarama represent the beauty of the Lord. Nrsimhadev is the protector of the devotees. So different incarnations represent different features of the Lord.