A 3-Dimentional Cube Puzzle

The Puzzle

The goal is to build the view in the number of pieces specified.
If a green circle appears next to the figure name, that means you had the view, but not the number of pieces.
A yellow circle means it's complete.
It's not as easy as it sounds, but I managed to nail all of them.
I actually managed to finish one under the number of cubes needed.

Example:


Complete:

At first glance, I was like, "Oh hey, I'll just position cubes in any which place so that they'll all match up with the diagrams." Then I noticed the cube count rule. Now this game seems so much more awesome. To puzzle solving we go!

Edit: On second thought, this game was actually pretty easy. I was able to solve it all after about twenty minutes time. Once you find the right work-flow, it all just comes together.

Well, I completed it. Honestly, it wasn't too hard. All you need is a good strategy.