Loving the new version, but one suggestion. On the completed puzzle screen, can you please add a back arrow or done button that returns you to the puzzle pack screen, and then repurpose the forward arrow to take you straight to the next puzzle? If I am having a good session and want to keep playing it is unnecessary to kick me out to the menu every single time.

Also, random idea I just had - why not try a meta game where in the level pack a completed game turns the level square a colour? Then when you've finished a pack the whole grid is of an image too. It's picross all the way down!

Anyway, nice work!