Really nice song you got here! :D I really like it. :3 I haven't heard the original, but I think I'll definitely go check it out.
Only thing I can say about it is there's a little mixing issue which causes a little distortion near your mid frequencies. Not sure what's exactly causing it, although might be an effect plugin? It first pops up at 00:23 - 00:38 and later on in the song at around the 1:50 mark.
Keep it up! Looking forward to more from you!