Ahsan Allahu ilaykum. Im so worried my non muslim father put my photo (female) in a calendar hanging up. He knows it's not allowed to share my photo but he would do the calendar anyway. I haven't been there in a while because of fitnah to see if it's true. Am I sinful for not saying/asking anything?

Ustadh AbdulAziz al-Haqqan

Everything should be approached with wisdom, leniency, and patience. Harshness will only make it worse and he might even never hide it because of that. But with good character, tawakkul upon Allah, dua, beautiful words and manners in sha'a Allah everything will be sorted out.