When dovahkiin sneaked and killed his foe who was standing near the other foe. the other foe did not react, like nothing happend arround him (his friend just died!) and then docahkiin killed the other foe, like he was totaly unaware to dovahkiin who was supposed to be spotted.
The giant fell stupidly from the sky after the dragon left him, he didnt wave his hands panicly, didnt react to the fact he was about to die.
dragonshouts were not emotional enough, but thats imo