Loved this. Very very cool.
I don't have much critique, but what I would say is this:
I played it for a while, enjoyed, scutch appeared, I was sad - kept trying, got overrun, much sad. Tried again, same deal.. thought "well, that was pretty great".
...I didn't realise there was a scythe/sickle. I mean, I _did_ realise at the start when I was thinking "how do I play? oh .. seeds, water, pick up, what's this shiny/cutty/metal thing? who knows! anyway, plant the seeds and la la la.."
I'd insta-forgotten there was a shiny-cutty-metal thing to cut the scutch.
So the critique is: it would be nice to have the icons have some kind of subtle flash, or attention drawn to them somehow - not sure exactly how to achieve that in your specific case, but I feel like that would have made me happy.
Graphics lovely, sound lovely, gameplay great. Escalation from cozy to "GAH" was fun. Excellent work.