Bonsai need periodic wild growth to gather energy and to re-balance parts of the tree that might need more development but then comes the time to bring them back to shape.

Wild growth to gather strength

Trimmed back to a normal bonsai appearance
Bonsai need periodic wild growth to gather energy and to re-balance parts of the tree that might need more development but then comes the time to bring them back to shape.
Wild growth to gather strength
Trimmed back to a normal bonsai appearance