The deathclaw doesn't look right, but the rest is pretty good. Except... does he have fangs or tusks? Whatever they are, they don't fit well at all.
Other nitpicks: I swear I can see a contourline for his knee on his left leg facing somewhat outward, however that foot is completely sideways. Also, combat boots have far thicker soles than that with a clearly-defined heel in the sole. The facing of the bottom of the right-handed pistol's grip is also off.