I've only done two sets of figures so farI've always been a WWII hobby historian but only started modelling 5 months ago.
My first was the three man gun crew for my 1/48 Flakpanzer-although small they were (relatively) dead easy as they were in winter cammo, sat in a gun compartment and wearing full headgear so all that could be seen were a small part of the faces and the helmets. Very difficult to get any detail thoughe specially with Tamiya 1/48; I'm sure their 1/48 figures are too small.
My second were a 1/35 two-man gun crew for my latest build-a Marder III. Field grey uniforms and black belt and buckle, not too hard. The think I find VERY hard at the minute is painting tiny details like eyes, an Iron cross or silver buttons.
I like to paint the boots first after assembly then when the paint has set I stand the figure in a lump of Blu-Tak. I have a magnifying glass mounted on a bendy arm on a big base, there is another bendy arm with a neon striplight to illuminate your work and that is perfect for figure painting.
I paint the face and hands first (exposed skin areas) then move onto the clothes. I paint the basic colours then usually do a very light black dry brush over the skin to highlight details and too give the impression of oil stain on fingers etc. Try and muck up the uniforms if they are tank gunner crew aswell ie on the knees and elbows but especially the hands.
Finally I try not to use the same skin colour for all crew members on the same tank, use different shades of tan etc-it looks more realistic imo.
This is my Marder (1/35). The figures need the shoulder Lappels painting and they also need a spray of matt varnish. You'll notice the mold lines on the guy on the left's left arm, I didn't at the time but it's something to watch for!
!/48 Flakpanzer-my first attempt at figures................the guy on the right has his helmet on backwards-that has now been sorted (doh)!
HTH buddy,
Ben