Marvel Cast Aquarius 3000 Piece Puzzle (It's misaligned badly down the middle, but less noticeable when complete). : r/Jigsawpuzzles
3,000 piece Marvel Superheroes (Aquarius). Took me 6 months, doing a little each weekend. Absolutely loved this one. Each character is their own little mini-puzzle. : r/Jigsawpuzzles
Finished my first 2,999 piece puzzle, Marvel edition. : r/Jigsawpuzzles