Crits:
The head is viewed from slightly overhead, the body is viewed from the front. Raise the eyes and ears, and give the figure a neck.
I don't think you need 20 colors on each base. You could get by with 4-7 colors for skin, maybe 5 for the eye since it is large and will be visible, 2-3 for the shorts.
The base figure is rather shapeless. The arms, torso, and legs are just tubes with the anatomy painted on rather than actual form. If this is just a manikin and most of the body will be covered up with clothing this might be ok - the body parts are just reference points. But looking at the clothed figure, you carry the same shapeless form to the clothing as well. I think it's also what is driving you to use so many colors.
There are plenty of ways to improve this, but they boil down to making the figure a bit lumpy. Muscles bulge and take up volume, as does the rib cage. You don't need to go nuts, just a little is enough to break up the straight lines. The clothing then adds its own volume. Armor is generally thicker than cloth and it isn't skin tight (no navels on torso armor!).
For inspiration, here is a page by Burne Hogarth or by someone drawing like him. Linked for size.
http://www.foro3d.com/attachments/40381d1165857530-capitan-america-hograth9zi.jpg You don't need this much, but keep these shapes in mind.
On the clothed figure.
The balance of light/medium/dark looks pretty good.
The spear has jaggies. This is bad.
Still too many colors.
The metal is monochrome. This seems like it should be correct, but it would look a little better if you had a small hue shift from light to dark.
That's all the crits I've got, hope this helps,
Tourist