Here is the full list of all 8 Season Match achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete the Arcade mode.
Destroy 50 or more gems with one tap.
Find all of the mirror shards to receive a reward from the Snow Queen.
Complete a level in 40% of the allotted time.
Complete the second episode of the Quest.
Earn 50 coins.
100% successful taps on a level.
Destroy more than 10 gems with one tap.