I like the nmm gold you've got. its really rich and brassy. The wings and their nmm silver, however..... although maybe you were just going for feathery grey and not silver (my immediate assumption is sanguinor=nmm attempts). In that case, bang up job!
look nice, but the nmm gold is practically all over the model, try and spread your colors out a little, using spot colors, and slightly more blending on the armour and wings would help too.
overall not bad. keep it up.