Thanks John for your comments. I was considering using oils but I went for Gunze acrylics with retarder added, this allowed me plenty of time to do any corrections. I looked at the Michigan toy Soldier you tube video, very informative.
just in case anyone is interested, these are the colours and paints I used.
I started off by applying a base coat of Gunze H313 Yellow FS33531 (air brushed)
Skin is Gunze 44 Flesh
Eye whites Gunze 21 Off White
Pupils Humbrol 109 WW1 Blue
Sidcot suit Humbrol 93 Dessert Yellow
Boots, gloves, helmet Gunze 406 Chocolate brown with white added
Goggle leather Humbrol 62 Leather
Goggle frames and buckles Mr Metal Color Stainless
Boot and jacket fur Gunze 21 Off White
Buttons Gunze 72 Dark Earth
Light skin shading - Gunze flesh with white added
Dark skin shading Gunze Flesh with Dark Earth added.
Lips Gunze 43 Wine Red with white added
Moustache and eye brows Gunze 72 Dark Earth
Des.