4x4 Puzzle Cube (hard)

This is another puzzle like my others however this time the pieces are designed to be a 4x4x4 cube which makes the puzzle very difficult. Even with the solution sitting in front of me I struggled to solve this one. A good gift for puzzlers this holiday season. Unfortunately I had to use a duplicate part which is labelled as 6-19 and I made a comment to make sure you print two of those. otherwise it is recommended to print this in as many colors as you can and please upload the completed print I have included a few images to hopefully assist in assembling the internal portion of the puzzle if you simply cannot figure it out they are at the end. Enjoy responsibly.