Use "sombreness" in a sentence

1. face had lost all traces of sombreness, indicating that the jig was obviously up

2. No longer a style heavy with curtains, sombreness and age, the sense of the forbidden and guilt

3. He came on keeping step to the sound of the drums with great gravity and dignity; and, in short, his stature, his gait, the sombreness of his appearance and his following might well have struck with astonishment, as they did, all who beheld him without knowing who he was

4. indistinct, and participates in the sombreness of the hand-tohand conflict