Only you know that the keys are upside down!! The border looks great.
I would not rip this apart. Sometimes we draw attention to something we think is wrong and others are just enjoying looking at it.
Don't be so hard on yourself. I remember Julia Child saying " Don't tell your dinner guests that you over-cooked the beans. They'll just sit there and say,'She over-cooked the beans." But if you don't say anything, they'll just enjoy what you've prepared for them.