The game has an interesting concept, especially for this being your first jam game and first time using unity. I think that maybe you could increase the pace of the game and it would help it out. I still thought it was fun and I would love to try to play it again if you keep working on it.

This is pretty good for a first game, i also made my first game ever for this jam. check it out if you get sometime

Congrats on finishing your first game! Some suggestions that could have made a difference graphically: try to match pixel size for the assets, if you need a bigger flower you have to draw it again with more detail, or go the other way and reduce the pixel count of the other assets making them less detailed. Secondly, I think a background would have really set the game up thematically, just some clouds thrown there.
The gameplay was relaxing but there isn't much to do for the user, game plays itself.

Good luck and hope to see more games!