Don't have vocals leap in octaves, much less anything greater than a P4. Sounds unnatural and is overall a bad practice.
Also the vocals/bells lines should alternate in either duple (Orig, Alt, Rpt.) or in Quadruple (Orig, Alt1, Orig, Alt2, Rpt.). It will help things feel more like a complete phrase. Currently the only thing that tells be about the phrasing is the beat, which still repeats the same way mid-phrase in many cases.
