This totally sounds like Snorolax! I both feel that the long held low notes feel like a sleeping snorolax and feel that they are taking up a lot of phonic space. I might consider having them start and stop throughout the song as opposed to always being present. This is me looking for constructive criticism though I think you've done a great job here! I especially like your runs of 16th notes in the high voice where they pop up, those are quite playful and fun!