That's... a bit Technic-y. It wouldn't look out of place in the old Bionicle line, but it's not streamlined enough for the new one. But those parts would be great for MOCing...
I really like the proportions, they make him stand out and look like he's earth-based. He's got an awesome hammer, and good color separation. I wanted to just get Kopaka, but this makes things complicated...