Pretty straightforward puzzle game. Here are my comments:
The Good:
> Concept is very easy to understand. :)
> The title screen music is very good. I liked it a lot.
> The "plants" theme fits the type of mechanic very well.
Possible points of improvement:
> It wasn't very clear to me at the start that I should aim for the water. Maybe the visuals can be improved to somehow communicate this idea.
> The level design so far is very straightforward. The only real puzzle was in Level 6 where you have to think of the order you remove the thorny plants. Maybe it needs more interesting level designs to be more compelling.
Overall, good job!
P.S. Please consider giving feedback to our game as well. We would appreciate it! https://itch.io/jam/gmtk-2018/rate/300343