very nice man :) the samples are a tad outta tune with the mix though. now without opening it up i cant tell which but it could be one of two things:
1. The sample is at a different bpm to the bpm set, meaning that the time stretch is detuning it - fixed by right clicking the sample and changing it to "Timestretchin (poor)"
2. The notes you placed are out of key with the sample. A few note changes here and there will fix the problem :)