The interior of Wat Tha Luang's ordination hall houses Luang Phor Phet, a Maravijaya Buddha image in the exquisite and sacred Chiang Saen style. The image is enshrined on a high, intricately gilded pedestal, with a five-tiered golden parasol (Chatra) suspended above as a royal offering. The backdrop features deep blue murals with "Phum Khao Bin" patterns and depictions of celestial beings gathered in worship. The interior atmosphere is solemn and serene, highlighted by the contrast between the radiant golden Buddha and the dark, ornate walls.