We are losing the classic red-blue-green combination, which I think is quite strong here and their sunburnt faces that complement the tablecloth...
I used green filter, found it to be the best option. But I am not good at converting to B&W.
It is OK im my view but does not solve the main flaw of my image - an unimaginative and boring composition. But what could I do? I could not come any closer.
like it better in black and white... composition not amazing, but their expressions compensate a bit - nice to have all four with interesting expressions