Can I just say I'm speechless?
I'm guessing you used reference for these images? Not a bad thing, but I was wondering because of the detail you put into them! Drawing tigers is one of the hardest things I ever tried myself, I think.
But yours look so lifelike. Like they're about to jump right out of my screen.
The way you placed these two together on that background really adds to the overall feel and makes that you don't get distracted. Giving you the time to look at all these details.