This is a technical marvel - I'm not really sure how they pulled off the mechanic of placing photos over top of the 3D world so well, but it works exactly as you would expect, and leads to some fun puzzles. It's not overlong, and doesn't overstay its welcome.

There were a few puzzles that I found to be a bit finicky, and I very much did not like that the last level had a timer on it (something which should be verbotten in puzzle games like this - you're meant to spend time thinking about solutions, not be racing a clock).

But, overall, enjoyable and worth playing.