Well, I did this last week.
I cleared out everything from my wardrobe. (every last item, out onto the bed).
I decided the only items going back in were items that I adored. So I tried on everything that I thought I loved and I looked at myself in a full length mirror and I decided if (1) I looked great and (2) if it fitted comfortably and (3) if I felt great. If I got a yes to all 3, it went back in.
I think it is easier to build it this way.
There were some items that I couldn't decide on so I put these in a hold location (ie I stored them away) and if I do not wear them in the next 6 months, they will be donated).
I stored all my beautiful winter clothes (I did the same 3 question test for these) in the drawer part of my wardrobe and so the display shelves and rail only contains my Spring/Summer/Autumn clothes - dresses, t-shirts, sweatshirts, cardigans, light jackets, jeans, trousers and sportswear.
There are some great resources online if you type in minimalism and declutter clothes . Do not type in capsule wardrobe or you will get the "trench coat/ jeans/ black trousers" rubbish alluded to in the first post.
Good luck.