Hello:)
In my opinion here need to fix those things:
- Bass - a low mid part need to compress that more because it too much buzzes
- Ukulele is too mono and sounds boring because also not enough bright on the top
- Also need to fix snare tops (not enough bright), I also would like to add to the percussion a bit.
- The bell stands out too much from the mix and takes attention to itself (nothing should be distracting, this is important)
In general, work with stereo (so that everything would not be so narrow in the center). Add brightness (so that the track is not muddy), bass compression(maybe it will be ok without compression when you will add more tops into the other instruments)
This is just my opinion. Good luck 