Hi Tandmadd and sivaveera,
If your trees are still looking unhappy, throw once, in the pot, 2 cups (normal 20cl cup ) (for big pots like in the photos) of milk (normal half fat milk) spread at E,N,South,W positions.
I would try it . Perhaps they miss some nutrients and they would get them with milk .
I have some seedlings figtrees, and they were getting me crazy . Started fertilizing them more - they still looked poor and sad . I threw a cup of milk ... Most of them are now happy ...
I suspect lack of calcium in the dirt.