I remember seeing a bunch of MOCs use those wheel-like pieces for knee joints so I thought I’d do the same. I’m glad you like it!
EDIT: I’ve added some more images of his limbs and torso since I didn’t think they were shown very well in the previous images.
Dem colors
torso is a bit stocky. Don’t know what to think about that.
@Cordak_the_Last_Makuta Thanks! I’m glad you like the hammer!
@Ekorak I think I see what you mean about the torso. I’ll see what I can do about that, thanks!
The colors make this MOC. The design itself is very technic heavy and mocpagesy, and the colors make this thing shine. I must say though, @Hawkflight could take a lesson from you shin design here. I really like the shin, barring the gap in it.
The hammer is also really cool, though simple.
The chest plate is the worst thing about this to me. To me, the HF torso armor add on never really worked for non Hero MOCs, to me.
I would also recommend fixing up the lower arms, which are rather awkward and gappy.
STILL LOVE THE COLOR THOUGH. 7/10
Thank you very much for your criticisms! I understand your gripe with the HF armour, though I’m honestly not sure what else could go there. Regardless, I’ll keep experimenting once I acquire more pieces. I completely agree with your comments on the lower arms; I’ll definitely try and fix those up when I next have the chance. Again, thanks for your criticisms!
Maaaaaaaaad skillz 
But the pieces aren’t that difficult to put together or take apart. I’ve manage to do it multiple times without either piece showing any sign of breaking.