Cube Puzzle

We're making a puzzle using blocks to form a 3x3 block cube.

Here are the drawings that I've done on 2 designs that I've came up with.

The first two shown are "cake layers" in which shown are layers of the puzzle in a less layered layout than the actual puzzle. The pieces are separated out. 5 different colors are used in each drawing. 

At the very bottom, I've posted an isometric sketch of all the puzzle parts.

I chose this design over the other design due to the fact that this puzzle would be more able to fit the time requirements that was required for someone else to solve this puzzle. It wouldnt take as long as the other design that I had come up with.