I am a giant Star Wars nerd, and I have been since I was very little. Darth Vader being my favorite character, his theme song was always something that put me in a state of awe, something that this remix does as well.
Flow - The song flows wonderfully along, the drums and bass providing a wonderful treat to the ears. The song also loops perfectly, so this is the sort of thing that one can listen to for hours on end without ever becoming tired of it. You have done extremely well in the department of flow, or at least that it how I see it. Well Done!
Bass - This is obviously a major part of the song, and it was done beautifully. It really has a divine sense of power that comes with it, none of it hitting too softly, and all of it having that awesome powerful effect that makes the song so awesome and intimidating.
Instruments - The instruments were played wonderfully, and they compliment the main portion of the song exquisitely. They really help push along that wonderful sense of power the song has that I keep mentioning. Good work here!
Overall - A very well made song that is fun to listen to, and is really easy on the ears. Very powerfully done, and expertly handled. I look forward to seeing more of your work in the future, it is obvious you are very skilled at making this type of thing.