Let me give you a suggestion. In the first part, you should praise yourself in words (preferably with your own advantages), then add your own name (three words), in the second part, you should belittle him in words (according to the reality, with his shortcomings), and then add his name, just his first name, not his last name (that is only two words). There seems to be a word missing from the couplet. I'm sorry for the couplet, which means he's sorry for you. This is a way of satirizing people in ancient couplets. Moreover, writing couplets and writing their own appropriate images is interesting and original according to reality.