Fighting For Dominance

Buck t. rex from The Lost World: Jurassic Park versus rogue t. rex from Jurassic Park III.
I want the fight to be more animalistic rather than monstrous, so I used both ostrich fight and komodo fight as the main references. Plus my red rex toys for detailing.
And since I want both rexes to be as perfect as possible, I made them individually at first before combining them.
For the background it's free painting, no outline whatsoever.