‘Bing di 并蒂’ from ‘bing di lian 并蒂莲’ (twin-headed lotus flower) contributes to the meaning of ‘a loving relationship’.  ‘Gui 鳜’ from ‘gui yu 鳜鱼’(mandarin fish) is a pun on ‘gui 贵’ prestige.

Hence this image is intended to wish a couple a harmonious life and much enjoyed prestige.

Related Pun Picture:

May you rank among the three top civil servants 位列三公