Ah, my apologies, I was thinking you were blending with the Vallejo.
What you've got looks really good to me, it's just a matter of doing it over and over like anything else till you get the hang of it.
A tip I found years ago is to fill a small dropper type bottle with a mix of 50% water and 50% Future (which is basically just gloss clear acrylic) and a few drops of retarder. Put a little acrylic paint on your palette and paint from that. When it starts to thicken add a drop from the bottle and mix it up with a toothpick. You can keep it fluid and fresh for some time that way.