to start off with what i like, i think the bees are cute. i think that theres a very solid framework for the game, like the core systems and the idea for the gameplay loop is there. i also think the idea and execution was quite creative. i think if this idea was fleshed out you could probably make quite a decent game!
onto my feedback, and i hope this all doesnt come off wrong and i apologize if it does. i mean this all in good faith :)
i like the visuals and artstyle, but i feel like the worldbuilding is just a little too bland in my opinion. its supposed to be low down on the ground it seems but there could be more stuff like potentially like weeds as obstacles (adds to gameplay too) and more grass in the background.
the gameplay loop is a good framework but i feel like there needs to be more meaning to upgrading. for instance you could maybe implement a day system where each day enemies get more difficult. currently its really easy.
the stage never really changes, which is accurate to how flowers are but its not good from a game perspective imo.
sound effects could be added for stuff like pollen, flying, attacking, killing etc
i think that seeing your money in the upgrade menu could improve player quality
a teleport home button may be good, if not that then add more risk to being out at night (i think this could help a lot with the game since you already have a day night system). i kind of just went to all flowers every round and got all the pollen and it was annoying getting back since there was no threat.
i think this has a lot of potential! i played for around 10 minutes and i enjoyed it :)