Testing Some Paint Schemes

I'm attempting to come up with the paint schemes for my army, and this involves quite a bit of experimentation. I'm new to painting (discounting the shoddy work in my youth), but I've been fiddling around with the airbrush as well as the old fashioned brush lately as a serious endeavor.

Here are my attempts at painting some old metal Flesh Hounds of Khorne from Games Workshop, in preparation to paint my Barghest Fiends from puppetswar.eu.

Using Vallejo's black primer, basecoated with Vallejo's Model Air "Fire Red" paint:

Followed by a layer of Vallejo's Flat Red:

And then washed with

GW's Carroburg Crimson:

GW's Druchii Violet:

and finally, GW's Reikland Fleshshade: