I stalled a bit but I think I see a way forward now ...
I will be getting rid of the wolves. The quality is not there in the base model. They are from Poser and I "could" add a fur layer but it only renders in Poser and would have to be comped in post (which is a pain and kinda bending the rules a bit much).
Not sure what to replace them with, remains of their last meal maybe ... ?
The jungle to savannah break is a little too harsh so that needs fixing.
Maybe an island or two in the river.
Birds, maybe some flamingos ...