Онлине слагалица «Grave of the fireflies»

As the cartoon to the cinema is suitable as a picture for the puzzle - no. Imagine this in a shallow cutting, especially smaller ones.

Large eyes help the animators to best convey all the emotions of the character.

If we talk about the implausibility of the anatomical part, (for example) speaking of crocodiles with accordions on the streets is also observed.

No, no I'm not arguing, just thoughts.
Any abstraction, fractals, patterns with a repeating pattern, in a shallow rectangular cutting, going the same way - at random.

And flowers, of which the catalog slightly less than "a lot", in a rectangular or wavy cutting is collected only "at random". For example, this bouquet I'm sure folding is much harder than the puzzle.

About flowers discussion already. Usually the veins in the plants are the benchmark.

as for the anime puzzle, difficulty in the fact that it is dark - my eyes get tired quickly.