Rav Aryeh Levine tried to avoid being photographed while being interviewed. When the interviewer told him that the photographer was a new immigrant and it was his parnassa Rav Aryeh said “Take all the pictures you want”.
As for having pictures on the wall, a man once went into a restaurant and asked to see the kashrut certificate. The owner pointed to a picture of a distinguished rabbi on the wall and said “He was my grandfather. Do you have any more questions?” The potential customer said “If he were in the chair and you were on the wall I would have no questions. However, you are in the chair and he is on the wall so I have questions”.