"We are delighted to know [that] the photo was being awarded."
The "was being awarded" here is a PAST CONTINUOUS TENSE, PASSIVE VOICE.
但係我唔覺得佢咁係啱喎, 反而我覺得係︰"We are delighted to know that the photo was awarded"...award邊有continuous的意思架?
You can check the tense with the following link:
https://www.ef.com/wwen/english-resources/english-grammar/passive-voice/