In 2020, LEGO released 4 Brick Sketches sets across 2 subthemes, all of these sets have been retired. Subthemes for that year included DC Comics Super Heroes and Star Wars. For that year, the total price of all retail sets cost $80, today those sets are valued around $128, a growth of 60%.
Most valuable 2020 LEGO Brick Sketches set
40428 The Joker $37.03
Largest 2020 LEGO Brick Sketches set
40431 BB-8 171 pieces
Most owned 2020 Brick Sketches set
40391 First Order Stormtrooper
4 sets

40386 Batman

Theme / Subtheme Brick Sketches / DC Comics Super Heroes
Year 2020
Pieces 115
Availability Retired
40386 LEGO Brick Sketches DC Comics Super Heroes Batman
Retail $19.99
Value $25.01
Growth  +25.1%
Annual growth 3.4%

40391 First Order Stormtrooper

Theme / Subtheme Brick Sketches / Star Wars
Year 2020
Pieces 151
Availability Retired
40391 LEGO Brick Sketches Star Wars First Order Stormtrooper
Retail $19.99
Value $34.37
Growth  +71.9%
Annual growth 12.9%

40428 The Joker

Theme / Subtheme Brick Sketches / DC Comics Super Heroes
Year 2020
Pieces 170
Availability Retired
40428 LEGO Brick Sketches DC Comics Super Heroes The Joker
Retail $19.99
Value $37.03
Growth  +85.2%
Annual growth 9.8%

40431 BB-8

Theme / Subtheme Brick Sketches / Star Wars
Year 2020
Pieces 171
Availability Retired
40431 LEGO Brick Sketches Star Wars BB-8
Retail $19.99
Value $31.48
Growth  +57.5%
Annual growth 10.4%