I'd say the templates are cool, aside from the back of the heads, which are oddly bent inward, but the colored ones are oddly staticy and cluttered.
The farthest foots (improper grammar, aye) are pointed towards the viewer too much.
The 1st armored knight is pillowshaded, gratiented, and has too low contrast.
The sleketon also needs more contrast.
You should try to eliminate the black lines within the sprites, as they make them look even more cluttered.
Good job for yer first peeps. Hope I helped. If ya want me to elaborate, just ask.