It has taken me 4 hours to beat, as shown in this video:
I will be working on slightly easier levels in the future, because I don't want to be sitting on the PC for another 4 hours. I'm thinking of making a cave-themed level with a leaf, or recreating Skyzo.
Who I get my inspiration from? Well, there are plenty of people who make kaizo levels in Super Mario Maker. Such as Panga, GoSeigen, Grand Poobear, and more. Check them out on YouTube because they're cool.
Why I choose Super Mario Bros. X instead of Super Mario Maker? Well, for quite a few reasons. I figured it would be much more interesting and harder in Super Mario Bros. X. Also, my Wii U Gamepad is currently broken right now. You can't even launch the game without it.