This time i would go for koto..
Koto's hulk looks more real, more life for me. The skin texture on koto's is way better, because its not glossy like bowen's. And the veins, i love how koto turned it out..it looks insane. But dont like the ragged jeans, bowen's better at this part. For the face i prefer koto, the expression is more natural with the wrinkles on his face. But koto's color is too contrast, bowen's better here. Anyway..its all about taste.