Better than the first
I liked the first one, and this one is a marked improvement, but there's just a couple of things I'd like to see if you're planning on making another this year.
For starters, a replay button on hard mode. It's really frustrating to have to sit through the credits or close and re open the game every time you lose. Maybe after failure on hard mode, you could retry from the same pic with the same time, or a small time penalty to prevent castrating the game's difficulty?
One thing that you took out from the last game were the hints, which maybe after failing at a picture a few times, you should have the option to view (I'm hoplessly stuck on the American Psycho pic, I can only find 5 differences)
One other thing is that the little twirly designs on the frame you use overlaps the pics in the top corners. I found that to be a distraction from searching for differences.
I don't know, just a couple of suggestions. I hope you're doing another.