Desktop looks great, I like how you handled different desktop widths and heights! Great use of flexbox to make everything stretch out / shrink to the device! (Learning from you, I'm not the best at flexbox!)
However when squishing widths down from 1016 it gets a little weird, stars go on separate lines, not enough padding. Around the outside of all elements. (But really a designer decision vs a programmer like you and me.)
I couldn't get mobile to display. I could only see desktop as I resized the width. (I was using microsoft edge.)