G'day Sreejith,
I like this shot, the way the setting dwarfs the Father and Son, as life and nature actually do, the muted tones evoking the quietness of the shared moment. The composition is good, I'd have the Father and Son a tad further to the left but not much and finding a way to add a bit more detail to the darker rocks in the foreground would be good, not too much or it would distract from the subjects, but a bit more wouldn't hurt.
Great capture Sree,very nice clarity and beautiful color too!!
Nice work.