I happen to have another picture of this same hunter with the trophies from only one hunt! About the same amount of animals as your photo,and taken in the same archway! The rifle he is holding looks to be a Jones under lever,back action, double rifle,with a cross pin latch for the foreend, which would make this rifle a very early breech loading double rifle! Most likely a a Westley Richards 450 BP EXpress! The rifle is easier to see in my picture!

The animals are defintely middle Eastern, most likely India,or Pakistan. As far as I know there has never been bear, or tiger in Africa, and there at least three Ibex, a couple Markor and what looks like Audad sheep, and a Chital.