Hi t0tex, welcome to the forums!
Youve clearly made progress with each of your minis so far. The consistency and coverage problems most obvious on the storm cast cloak are easing up. You managed to paint the details neatly on the barbarian, and that sort of brush control takes a lot of people a long time to pick up.
You'll find that a lot of the advice you get early on is as Ten Ball said, thin your paints and use multiple layers. You're already getting the hang of shading and highlighting, but you need a good consistent base on the mini to make use of them properly.
And if in doubt, check the Warhammer TV painting tutorials on YouTube. They're brilliant for beginner advice.
Fox