Correct me if I’m wrong, but the Madewell jeans were your only pair of jeans, right? You looked and returned many jeans on your quest. You wanted to duplicate at the time and held off, convinced you should not duplicate going forward. Plus, I did wonder if your small wardrobe could hold up to a no buy month. These three jeans look like a good capsule. The last are a different fit? Double check you love both the new ones before cutting tags.
You should maybe take a look next at your other considered needs. Long sleeve blue knit tee and adding some colored tops. Do those sound like needs for you? Good news about doing it in November is you find things you love when you can’t buy. I say as long as you hold to that criteria, you’ll have a successful November challenge either way.