It's original. I haven't seen a combination of Tetris and a jigsaw puzzle before.
But I'm afraid players won't like the current version. It's too small and everything blends together, making it hard to see.
And I see several solutions and different games that could be created:
a) The player chooses when to drop a piece, no slow automatic movement. Accordingly, we remove the empty drop zone and get a larger picture.
b) We collect not the entire picture, but a row or several, then we can keep the slow automatic movement.
Very simple mechanics; maybe I should create a game like that myself. Heh-heh)
The pop-up text on the board hinders the gameplay.