Hi Jas,
Looking like a good start.
A couple of things. The blacks seem to be reading more as grey (to my eyes anyway). could be the pics or just that you have some black undercoat still showing on the bits you haven't gotten to yet. I'd leave it until you have some progress on those areas and see how it looks. Otherwise some black glazed on across the mid tones and into the shadows will most likely sort it out.
The Red looks like a good start. I think you need to take the shadows deeper. VMC black red would be a good colour or add a little very dark green into your current darkest shadow mix. Also I think the current brightest colour is covering a little too much area. More of that rich red thats round the darker areas will make the whole thing more punchy I think. Finally the highlights could go up further but in a much smaller area esp on the chest, hand and shoulder pads. Are you using a lighter red, a white, orange or a bright flesh tone for highlights?
