Suggestions:
- The parts of hip plates are merged together, try to separate them with some wash, and paint the studs(?) on them with different color.
- Contrast of the scale plates is low, try to highlight the lower edge of the scales, and darken more the recesses.
- On the club add some darker/black lines above the metallic scratches, giving them some depth. Try to use some finer brush for the lines, too.
- You could use some brown was around the studs of the bronze band on the drum could, maybe some dark turquoise, too, to represent verdigris
- Put a white dot in the middle of the pupils.