Jigsaw - Ugly4
These puzzles are called ugly4 because the real fun starts when the player puts everything together except the last 4 puzzles.
Put together all the way to the last 4 puzzles and it's not that difficult and you will very likely think that this is an easy puzzle. But the last 4 puzzles put you in front of a special problem and I will just say that one of my friends struggled with that 4 puzzle a full 2 hours before he gave up.
Angels touch
I would also mention that the creator of these puzzles claims that the Angels inspired him to make them. Given how much I’ve struggled with the last 4 puzzles and how creatively designed the problem is, I might even believe it.
Review by Chris Ramsay
Here is review by Chris.
Don't worry, we have linked the last section of video, so it will not spoil to you the magic of puzzle. So you can only hear his thoughts at the end of video: https://youtu.be/BqvunFe77iY?t=1279
Also, you are safe to watch video from the beginning until 04:00
Try it online
You can try to solve it in online game here: http://www.technoangels.hr/ugly4
The left image is not an solution, but some random player was "creative". :)