I loved all the slow patient sections in this track, the pauses really bring out the magic in glockenspiel and chimes. With regards to your goal of writing a piece mainly using percussive instrumentation, I think you did an excellent job keeping things interesting by constantly varying the musical ideas throughout the nearly 4 minute track.
Just to give you an alternate perspective on the dissonances that FoxHyode mentioned, I think 1:07 is completely fine, I don't find anything wrong with it. I concur with 0:56 feeling a little too strong for the rest of the track and 0:27 to be a nice touch. This chord at 1:48 is a little dissonant at the lower-mid frequencies, go for more open voicings and try to move dissonant notes to higher frequencies to make them more palatable. However, all these dissonances are fine as long as you intended the piece to feel this way; dissonances are an important tool in a composers arsenal and if you designed it this way you should just ignore my criticisms.
Overall, this is minimalistic but satisfying submission, I never got board despite the track consisting of only a few timbres.