Here's a shot with a dwarf so you can see the relative size differences between human males, females, dwarves, and halflings. As mentioned earlier, the humans here are 15mm.co.uk, the dwarf is Ral Partha Europe, and the halfling is Irregular 6mm. As you can see, it's a good spread. The dwarf is a head shorter than the human male, and the halfling stands just waist high. I'll make sure to add one more once I get the last race (elves) painted up, and they are waiting on-deck.
One other thing that's worth a mention is the shield on that fighter/paladin type. At a distance, or if you don't know your traditional Catholic artwork, it just looks like some colors thrown down. When you see it right next to the reference work?