You don’t have to argue someone out of liking your work. “Thank you” is enough.

When a compliment makes you uncomfortable, the instinct is to correct the record. You point out the part that went wrong, the help you had, the thing you would redo. That feels like honesty, but it mostly puts the other person in the position of defending their own opinion of you. It also trains you to hear praise as a claim to be checked.

Try taking the next one plain. Two words, a pause, no appendix. If the flaws really do need saying, they can be said later and to somebody who can do something about them.