You should add two things
1. Layers that would allow you to make new cells on top of old cells
2. "Elevator Cells" or something that would let Bees go from one floor to the next
I'm saying that you don't have the technical perspective to offer meaningful technical advice. Telling me that shipping my game on another platform should be easy is not critique.
For actual critique, I think it is important to recognise that unsolicited critique carries the burden of needing to be delivered in a way that the intended recipient can be receptive to, otherwise it's just noise and is a bit rude.