Bombed a take-home review call, asked for feedback anyway, and the notes actually changed how I write code now

Take-home passed automated tests but the review call was rough, kept getting asked 'why not here' on things I hadn't thought through. Instead of just moving on I asked what specifically would've made it a stronger submission. Got three concrete notes about naming and one about tests being too coupled to implementation. Applied all three to the next take-home two weeks later and it went completely differently.