I like the concept, but watch out for "perfectionism". You don't want them to think that you will spend too much time in the pursuit of "perfect". Here are a couple of sayings you will want to ponder:
"Good enough is Perfect" (paraphrasing Voltaire or someone else, depending on who you believe)
"There comes a point in every project where it's time to shoot the engineers and actually begin production."
Like you, I appreciate good, clever, brilliant engineering. It's art, science, and philosophy combined. But don't give the impression that you're one of those who can't actually deliver a working design to a reasonable schedule.
On the other hand, when doing a self-review one is usually expected to throw in a little critical self-analysis. I usually mentioned "perfectionism" as one of my weaknesses. But that was after I had the job and a good track-record, my bosses knew me, and we all realized that was how the game was played.