In flight the wing twist (which goes with the bending)
The key statement is in brackets. The moment of the wing twists the wing tip "nose down". But having a positive wingsweep, any upward bending results in an even more significant "nose down" twisting of the wingtip, simply because in the coordinates of the wing, the leading edge of the wingtip is more inboard than the trailing edge, resulting is a different amount of up-bending. As wings are much softer in bending than in twist, it is mainly the second effect which is important.