I like it.
The greyscale colours are nicely used, good mapping, smooth lines. Nice shading.
I did notice you used the same pic for the shins, thighs and feet. You might want to keep it more A-Symmetrical.
The side of the head could use something, can't really put my finger on it.
The torso is quite plain, it looks like one pic for the whole thing.
And those fists, they're mapped nicely, but they look a tad weird to me. Maybe if those fingers weren't that straight it would look a bit more realistic.
Overall I think this set is worth 40k-50k.
I'd rate it 6,5/10 and I wish you the best of luck selling.