YOU SAID:

I've seen his jawline, shoulders, and muscles

INTO JAPANESE

あごのライン、肩、筋肉を見たことがある。

BACK INTO ENGLISH

I have seen the jawline, shoulders, and muscles.

INTO JAPANESE

顎のライン、肩、筋肉を見たことがある。

BACK INTO ENGLISH

I have seen the jawline, shoulders, and muscles.