It looks like there is a filter on the armor, and you freehanded over it, and judging by the low quality of the plates and pads, im gona assume you didnt completely freehand it.
Also, the detal in the armor is too busy, and sloppy. The designs kinda run into each othe rlike a giant mess.
Your color scheme is very simple. I do see some small variation of slight hints of red/blue/tellow amoungst the brown armor, however, becasue brown encompasses all those colors, simple blending luminosity will bring those out without actually shading in hues, which should be done to blend such a simple color scheme.
Clean up the work, its too smudgy. If you can clear it up, and maybe add a little seagreen to the creature skin (becasue the blue is too striong) it could have some potential.
EDit: The ingame SS is horrid, the armor looks like her smeared himself with feces...