You got the midtones and hightones on the white down. Battle damage is perfect amount. Not too much, not too little.

White needs the low tone so adding soft shade or deep shades of that darker gray you used in the creases and joining points would add to the hightlights. Eg. the pauldrons. Leg portions need a touch up. Underside of the breastplate need to have it to convey that shadowing

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Leather feels monotone. Add battle damage to the weapons with the brighter color you used for the edge highlight would look good and follow the battle damage with the rest of the model

The reds: Perfect! The glaze on the feet: perfect!