5/5 - 1.5m - This isnt perfect, but it has some very minor things that shouldn't knock it down from a five. All the blending works very well and I like how the bg comes into the render, but not too much. As far as things I think were missteps, the black helmet cut is choppy. First thing that caught my eye to be honest. You also have this odd gray coming off the left side of that render, that feels off. I think your color palette is vary muted, but I assumed that was to keep some harmony in the colors.