Pretty Nice :D
A very nice short chord progression, fast paced and definitely keeps the listeners attention. The piano is very nice although it is very fast. 16th notes? Either way it sounds good. ^^. The pad at 25 seconds introduces a nice melody and the lead that played a few notes during it made it sound nice. Then at 48 seconds, what happened? All that energy built up previously was gone. Sometimes doing that works and sometimes it doesn't, I feel you should have kept the lead and melody and made a more upbeat section featuring it. The mastering is fine and the samples are good for the most part, I don't like how the crash sounds at the build to 48 seconds. It doesn't ring too nicely. Another thing that could be improved with this song is that everything happens so fast, that it doesn't have enough time to be heard. Each section is maybe 16 bars or 24 of a short melody and then the mood is different not too much later. You can extend this song out to be a good 4-6 minute long piece and it would be very enjoyable I would think.
Good job though :]!!!