Generally speaking, it is taboo to treat god beast in Feng Shui, but I suggest treating Feng Shui dialectically instead of blindly believing it. As far as the photos you mentioned are concerned, I suggest that if the photos are not large in size, it will not affect them if they are not hung on the living room, dining room and bedroom walls. Another point is to look at the posture of the tiger. If it is a tiger with an open mouth, it is not suitable for display. But if you are docile, it doesn't matter if you make a small photo frame and put it on the shelf or somewhere in the study.
I hope it helps you!