His Wikipedia page has some other photos, along with a nice account of his execution, on 1940-02-04. After his arrest in 1938, he was succeeded by Lavrentiy Beria, who remained in office until his arrest on 1953-06-26. Beria was executed on 1953-12-23.
E.g., here is Yezhov without a hat:
Here he is conferring with the boss:
And here's another photo, in which he appears in the front row, flanked by Beria (left) and Mikoyan:
