Flaming heinus song.
Pre-1:05, everything in terms of note placement and what not is great.
Post-1:05 the piano rolls or scales / fast consecutive notes don't really sound like their being played, they cut each other off, and don't really flow.
I'd suggest you think of the drums not as individual pieces and sounds, but as a whole set, they need to all fit together and compliment one another. The kick is nice sounding, but the quieter kick / kick rolls don't sound so good (it may be a delay effect). The hi-hats and snares though work, they are light and crisp.
Strings are smooth and calm, no problems there.
Piano I think could be a little more crisp to define it better. If you add in some volume dynamics with them, it will make the piano sound much more realistic as if someone is playing it 'with emotion' (oh la la, emotion). As some people on thehelper have said, it feels like it needs to build up a bit, and I think the piano is the way to emphasize the build thats already in place.