Arriving late to the contest. Let's make a Collage is back.
When I opened the photo this morning, it reminded me of my childhood, my grandfather's puzzles.
My Grandfather's Puzzles:
Image of the template of 
I made the edition in Gimp.
Filters → Rendering → Puzzle.
Use the color correction tools to get to the color you wanted in the puzzle.
To participate in the contest:
Let's Make a Collage