The temples in Bangkok that I saw showcase a blend of Chinese and Thai art, such as Wat Kalayanamit, Wat Thepthidaram, and Wat Phichaiyati. I used to be surprised by this. However, after learning the history, I discovered that this temple style was considered the "royal preference" of King Nangklao (Rama III), who appreciated the Chinese style and liked to combine it with Thai temples. Therefore, I think that every temple with a Chinese influence is connected to Rama III in some way.

This temple is distinguished by its interior art and architecture, built according to the royal preferences of Rama III. As mentioned earlier, he greatly admired Chinese art. The ordination hall and the various temples forgo pediments, bai rakāka, or hang hong, as he considered these easily damaged and time-consuming to produce. Therefore, the pediments are simple and decorated with glazed tiles featuring Chinese floral or animal motifs such as swans or dragons. Wat Ratchaorosaram is considered the first temple where he integrated Chinese art into Thai temple architecture.