Nice architecture and design, but I'm disappointed that you just copied the puzzle from lvl 49. It doesn't seem to hard to make one of your own... just put a bunch of vertical and horizontal sliders in a tight position and jumble it as much as you can. Then remember/screenshot the jumbled puzzle and copy it to your real stage. Of course, I've never made one, so I might be wrong, but this way seems effective.
I've made a level like this and I wanted to post it,I hope you don't think that I've copied your level
Modular puzzles like this are essentially everywhere I agree with @Frenzies that it isn't hard to make one. Back then it was how I designed my Nakagin Capsule by adding draggable blocks piece by piece (though it was a three-dimensional building with a twist at its roof). I think the hard part is how to make it fresh and innovative again, such as what @meko has done in his Opening Doors.
Cool remake of level 49. Just three stars though because the original level 49 was much harder since the crucial piece will have to go back the way it came from, while this level is only one-way. Still, a nice remake.