After making this top, I saw a top like it for $6. So I thought, "Oo, I could have bought it at the same price I made it". Well, at least it was a good learning experience. :) I replicated a top I already had.
Here's the top I replicated with some changes.
Detachable sleeves, because I love all sleeve lengths (even through summer!)
Sewing "right sides together" means putting the sides you want visible (the sides that look good) facing each other, just for the sewing part, so you can turn them inside out later. Pretend the sides that look good are kissing.