well... face wise, that's quite late in the day for my taste. very 6ed. I'm a sucker for Kev Adams. Hell, if you want an idea of how to go old Hammer Gobbos, just look up on Kev Adam's sculpts. Even his newer ones which are slightly different but still great.
I see FDM printed bases ^_^ I can see from how rough them bases are (I think you need to check your belt tensions) the figures don't appear to be printed on the same Printer.
best thing to do for proportions is get hold of a couple of old miniatures, or ones from very old style companies like Oldschoolminiatures (who have new Kev sculpts) where you can easily use those as a scale guide. I'm FAR from any good but I do have a couple of printed scale guides, one for rough sizing of the bones (for making the basic armature) and one for more with muscle on.
Proportions shouldn't be 'realistic' When you scale something down, you need to adjust the proportions with that. It's a bit like how when you are a baby you are 4 heads tall. By the time you are an adult, you are in fact 8 heads tall. You body has grown to twice the size of your head (in fact, you would be surprised how little a human's head grows as the body does). With miniatures in a classic decent style, you are probably gonna go for maybe 5 heads tall.. 6 max.
For a 28mm figure, you are gonna use about 5-6mm just for the head compared to 'realistic proportions' that' is far out (I think at 28mm, it should be 3.5-4mm head size.
Hands and feet should also be a bit bigger.
For Goblins and such non-human ones, you probably are gonna make the heads and hands even bigger. Gobbos are mischief makers and you want space to show the rubbery nature of there strong expressions, where a human is kinda plain faced.
I always see the Kev Gobbos (and how I picture them from myths) as not evil or even nasty, but mischief makers. Oh, they might cut off your arm, but it's only a joke to see what kinda reaction you get (in a way, Look at the films Gremlins and Gremlins 2 (ignore anything else related) and look how the Gremlins are shown. They aren't evil. Even in the first film which was the less cartoony version of them, they are far from Evil. I feel 6ed and later, they kinda got too evil and... erm.. Jewish... (long story)
But it looks like you got some nice ideas and starting off well. There are more what I would call professional sculptures on here who can probably give FAR better advice then I can but I think most of what I said should be about right and help point you in the right direction. 2002 would be 6ed and if that is what you prefer, go for it! if you want earlier, go for that too. I would say Kev's style was 3-4 (maybe some 5ed) and before that.. well.. you start to get to them plain just looking like humans Orcs that DnD used to like.. dull.. boring.. no fun.
