Lovely piece, very cute, and put a smile on my face! Perfectly fits in with the Minecraft sound. Your choice of sounds are great and there is a good pace in how the piece develops. The harmony and melodies are simple but very pleasing. In the second half, I would suggest making the pulsing/modulation on the lead synth more subtle - a much smaller range of modulation and more locked into the tempo. Overall, I really enjoyed this piece. Great work!