I've been looking around for some refs, and I found this:

Wish you had posted it earlier! It helped me see some problems:
This action figure's arms seem slightly too short, and the crossbow slightly too small compared to other refs.
These issues also appear in your piece; it's a small matter of a pixel or 2.
Then, the pose of yours is too relaxed compared to the character's general attitude. Even the figure looks more tense, mostly thanks to the head and neck being carried lower into the shoulders.
The face and expression (eyes) aren't look-alike; PPD's is closer so far.