I guess I'm not quite sure what you're going for, then!
So, here's two options to reference:
the first, zangief, fits the burly physique of your tigerman here a bit better and seems to be closest to what you've already drawn:
The second, Ryu, is closer to the guarded shuffle I was picturing!
Both of these gifs involve a bit more arm movement than you've put in, but hopefully it'll give you some ideas!
The crouch still looks off, though, because the feet and arms don't change position for the crouch! Ideally the arms would spread out a bit for balance, and I'd extend the rightmost leg some to give him a more spread stance. Alternatively, pull the arms in so it's more of a squatting position! Another small thing you could do is sell the downward momentum more by raising the shoulders some, it's something I employ myself quite often!