For this project I have done to start to finish:
The model of the panther in Blender.
For the grooming I have used the new Hair system in Geometry Nodes, then I converted it to strands to be rendered inside Unreal Engine.
The entire set has been rendered in Unreal Engine using Render Movie Queue and console variables.
I wanted to do a foggy scene in the middle of the jungle as an exercise to light the cinematic shot.
I have also used Nanite for the foliage and Nigara system for fog and particles in the light beam.
And Quixel Megascans as you well know :)