VERY nice. exspecially the metal! can you do a quick guide for that (brass?)?
Have you tried weathering pigments? i would consider using them on this piece as well. they are dry, just use them on the leg and lower part of the shield, they do wonders! you can do washes too. they give your miniature a deeper surfacetexture. Hairspray can do that also for you.http://www.youtube.com/watch?v=VATj9lBKHfM
have you already used a surfacecoat?(cant see that on pictures) Shiny surfacecoat can be applied on the lightpoint of your metal only, looks great (it buffs the natural lightreflexes).
2nd: Have you ever tried oilpaints? The change of posibilities is mindbreaking: you can do impressive colorblendings and the paint takes days to dry (you can rework them without using another layer of paint).