nice detail

just one thing...
see the rounded parts on the legs there? see how you can see that it's made of faces? (just had to check that im using the right terminology... xsi calls them polygons) that's caused by hard edges
you should soften them

select the edges, hold down shift, and right click... oh wait.. mac, ctrl click for you, and you should see an option on the menu to soften the edges

alternatively, in the polygon's menu set just go normals > soften edge

im will make it look smoother and not be smoother if the normals are softened... i almost feel like saying how that works, but i should resist...