I'll try to comment on your mini, firstly, the Vostroyan Vox Caster, it's looking good and a 6 ish score is nothing to be sneared at.
The face is great, could do with a final few highlights, thats all.
The green coat is just one colour and could do with highlights.
The bronze/gold is again just one colour, needs at least a wash of black to show off the shaded areas, the same with the gun.
The base, it's OK except you have not painted the gravel round the edge to go with the top part of the base.
Since you've asked for comments I have flagged this up in the forums for others to view and comment. Basically I have to agree that the ony real things "Lacking" on the paint job of this mini are Slightly thinner paints, an increase on the levels of highlights and balancing increase in depth of shadows to improve the contrast for the metallics. The green coat is a nice change from the 'official' GW colour scheme but could do with highlighting. As for the face, well you've pretty much got that nailed. The eyes are spot on (pun intended :D ) so very little improvement is needed there. I'm looking forward to seeing your future figures, Oh yes pop into the forums and "Pimp" your figures as well. That way there will be more people seeing them and responding to the request for comments. :D
The face is great, but a lot of the colors look a little flat. A real matte varnish (Testors) and some more highlights will improve the look. Try a .2mm micron pen for the purity seal text.