They have just finished up their bloom period. Individual lily flowers do not last very long....only a few days......and the hotter the weather, the less long they last.

Thank you!!

If you are new to lilies, once the flowering is done, as per your pictures, snip the stem of the spent flower just below where the flower was. So you are leaving a lot of green leaves. After they are done flowering the green leaves gather energy into the bulb for the next year. When the whole plant turns brown, in the fall, cut it off about 2" above the ground.