Top left one taken on 15th January, top right & bottom left were taken on 16th January, all at Kithulgala. But the bottom right one was taken on 18th January, in Sinharaja rainforest.
No interactions present.
I think you have the ID correct. You should add a revised identification with the scientific name Otocryptis wiegmanni
Lat/Lng: 6.9898, 80.4272
Three were taken in Kithulgala, the bottom right hand one was taken in Sinharaja rainforest.