Sources:
- 1st pic - https://cafe.daum.net/CUBE-CLC/cbuK/13 - 29/03/2015 [150329]
- 2nd pic - https://cafe.daum.net/CUBE-CLC/cbuK/19 - 14/04/2015 [150414]]
- 3rd pic - https://cafe.daum.net/CUBE-CLC/cbuK/23 - 30/04/2015 [150430]
- 4th pic - https://cafe.daum.net/CUBE-CLC/cbuK/45 - 18/02/2016 [160318]
- 5th pic - https://cafe.daum.net/CUBE-CLC/cbuK/60 - 16/08/2017 [170816]
- 6th pic - https://cafe.daum.net/CUBE-CLC/cbuK/68 - 16/03/2018 [180316]
- 7th pic - https://cafe.daum.net/CUBE-CLC/cbuK/75 - 27/03/2019 [190327]
- 8th pic - https://cafe.daum.net/CUBE-CLC/cbuK/79 - 29/06/2019 [190629]
- 9th & 10 pics - https://cafe.daum.net/CUBE-CLC/cbuK/80 - 07/07/2019 [190707]
- 11th & 12th pic - https://cafe.daum.net/CUBE-CLC/cbuK/81 - 11/07/2019 [190711]
- 13th pic - https://cafe.daum.net/CUBE-CLC/cbuK/84 - 04/10/2019 [191004]
- 14th pic - https://cafe.daum.net/CUBE-CLC/cbuK/86 - 21/01/2020 [200121]
- 15th & 16th pic - https://www.united-cube.com - 01/10/2020 [201001] & 10/11/2020 [201110]