Don't take it personally. I've posted many times with little or no
response. Sometimes that's the way it goes. It's not personal.
Your figure looks pretty good. Overall it's really a very nice figure.
My
suggestions (and I mean suggestions, in the spirit of learning) are as follows:
I would have worked the seam on the head a little more. It should be
gone. It's hard to do without damaging the hair detail, but ya just
gotta do it.
It looks like you have some broad shading on the wider, shallow folds
on the arms and such, and if that's what they are, and not just natural
shadow, they look pretty good. Your outline shading, however, is a
little too strong. It should blend a little more. I'd have
used a lighter shadow color and blended it in a little, then came back
with a deep shade color, sparingly, where needed.
The stark shade contrast is particularly too strong on the white
shirt. Black is never the antithesis of white in figure painting.
Whites come in warm and cool hues, and need to be shaded accordingly.
If it's cool, use blues and cool grays for shading. If it's warm, use
tans, browns and warm grays. You really never need to use straight
black. Also, your base color should never be straight white. It should
be an off white, but, again, the hue depends on whether it's warm or
cool. You'll want a mid shade tone and a deep shade tone, your base
color and then straight white for your highlights.
Your skin tone doesn't look too bad, though I can't tell if I'm
seeing natural shadow or painted shadow. Either way, I will say that
the skin looks a tad jaundiced, but it's really not too bad. I'd add a
touch, and I do mean a touch, of red and then some white. That will
lighten it and then pull it away from tan and into pink. A little red
goes a very long way though, which is why I say to add just a touch.
The hairline is too stark as well. It looks painted, in fact it looks
masked, which I'm sure it was, since you're using an airbrush. Military
cuts usually are pretty stark, but they still do blend.
For the metalics, try adding black to silver for a gunmetal gray as
your base, run a light wash of black or dark blue, or maybe even brown
into the details, and then dry brush with straight silver. The Iron
Cross ribbon looks like the pic below, and should be painted
accordingly.
All criticism aside though, it really is a nice figure, and my critique
is simply because you asked and want to learn. They are suggestions, so
don't feel you have to take them. Enjoy your work, however you do it.
That's all that matters in the end.