If this is your first season playing ranked here’s how the playlists will look like. You first play have to play 10 placement matches to get placed into a rank before you can start chasing the rewards.
Here’s how it looks when no reward has been earned while still playing in Bronze. Reaching 12 wins doesn’t mean that you’ll advance in rank, just that you’ll get the rewards for that skill tier. Note how in the picture below the bronze rank has been reached but no season reward is unlocked yet as 12 matches have to be won first.
When you’ve won the 12 matches in Bronze, the “Unranked” symbol will switch to a Bronze symbol and the counter will reset to 0. You then have to reach silver in order for the counter to start again, as can be seen in the bottom right corner.
Good luck this season!