Nice song! I've never listened to the original so I can't really tell you what the differences between this and the original are but what I can tell you is that the synths and piano sound great! The drums/percussion... not as much. I see you've pointed out that you have a weakness in mixing but I'll try to give some of my advice for use in the future. Personally, I don't think you have a problem mixing the synths because overall I thought they sounded really good and blended really well. The bass drum (at least that's what I think it is) that comes in around :33 doesn't have that much bass to it leaving it rather tizzly in the high end and making it difficult to hear. To fix this you could bring up the lower ends in a graphic or parametric equalizer to how you see fit. I think that's about it on the mixing end, all you really needed was to bring the kick and snare up a few dB and you'd be good! Sorry if this sounded mean or harsh, I didn't want it to come off that way! I look forward to future works! Peace out!