Ouch... I had to go under 5 :( That sucks...
Here is a couple of tips: Highlights! Always highlight your models, especially the larger ones.. You just poured on a thick layer of gloss varnish, and you get thoes ugly as hell piles of varnish... If you had highlighted the edges of the plates from grey to white first, and then glazed them THEN varnished them, it would look alot better. The bone you need to shade as well, it looks way too polished (specially the teeth, rest is blurry) Nice try, but keep in mind that black shouldn't be rushed or it just looks fake...