удачными

удачными

"Successful" or "fortunate."

Here, 'удачными' is used to describe the quality of the photos emphasizing their success or favorable result.

Эти фотографии получились удачными.

These photographs turned out successful.

In this context, 'удачными' is used in an instrumental plural form modifying 'решениями', indicating effectiveness or positive outcomes.

Книга оказалась удачными решениями для сложных проблем.

The book turned out to be successful solutions for difficult problems.

Here, 'удачными' is used to describe the figurines, emphasizing that they were made successfully or turned out well.

После долгих попыток, сделанные им фигурки были удачными.

After many attempts, the figurines he made were successful.