Great composition; great pose great eye contact!
But something is wrong - I'm not sure what though. It might be the blue of the whites (possibly reduce cyans saturation?); it might be if you've boosted darker areas (not sure if you have or haven't as the tigers left side of the face is still quite dark yet the body of the mother seems to suggest some shadow brighening?)
If anything I would suggest a modest localised boost to brightnes on the left side of the cubs face; coupled with a lift to both eyes - just to bring them out a little more from the shadow of the cats own brow so that they really can connect with the viewer.