finishing touch

US /ˈfɪn.ɪʃ.ɪŋ tʌtʃ/
UK /ˈfɪn.ɪʃ.ɪŋ tʌtʃ/
"finishing touch" picture
1.

点睛之笔, 画龙点睛

a final detail or improvement that completes or perfects something

:
Adding the small decorative vase was the perfect finishing touch to the room.
加上那个小装饰花瓶是房间完美的点睛之笔
The artist added a few more brushstrokes as a finishing touch to the painting.
艺术家又添了几笔,作为画作的点睛之笔