You indeed have a steady hand and some good brushes as you managed to pick out some very fine details in this scale, like the insignia.
What paint did you use Dominik?
One thing I seem to notice is that you use one base colour and than do the shades with a greyish wash one all the parts, skin and uniform the same (is that correct or not?).
What you could try next time is to adapt the shading colour to the base colour; so use a different one for skin and uniform.
Another thing you could try, is to do both shading and highlighting, the latter with a lightened base colour. How to do this strongly depends on your paint if choice... It's quite different for enamel, oils and acrylics.
Overall, you figures look nice, particularly for this scale.
Cheers,
Adrian