how to say"他看着那些……"in English?

He just marvels at those drifting cloudies that are heading towards one after another.
偶··也不知道怎么能更地道。。。

He is overcoming with emotion while gazing at the clouds flowing towards endlessly.

Gazing at the clouds that float endlessly towards him, he is overcome with emotion.

Looking at the clouds flowing from far away, he is deeply touched.