Thanks for the feedback, and yes I tried to render the photos as well as possible on a 160x144 resolution in 3 colors ;) .
As for the game, I had 2 types of reactions, either people love the "luck" and "guessing" side, or people don't like it, and it's probably because of the frustrating side if you don't have any luck as soon as the sequence 3 / 4 ...
So I will publish an update with 3 versions of the game (with clues for example) at the end of the Jam, but anyway I would not have had the time to develop all of them in only 7 days ...
If you want to see the end I made a youtube video of the longplay, with the solution below, if you want to do it yourself :) .
Thanks for the feedback :D