This first batch are mural painting in Temple name "Wat Phumin" located in Nan province in North of Thailand.
Nan is a small and peaceful town with strating in the end of 13 century AD. in neary the same time with Lanna kingdom(Chiangmai).
This mural painting in Wat Phumin was painted during Siam King Rama III (about neary 200 year ago).
The mural in this temple is a story of one of Bhuda before life name "Kanttana-Kuman Jataka (Chadok)"
But this photo is located next to door frame which will cover by the door while it open fully, so it should not has any related to the story which suspected that this should be self portrait of the painter with his girl.
Remark: the time of painting should not at the period of King Rama III as found the evidence that the painting is on around 1893 AD.