Beautiful looking game with a nice atmosphere
However i couldn't really figure out how to progress that far, i was able to move, pick up, and put down the sprout, i was only able to jump once and couldn't figure out how i did so :/ (i don't know if you intended on having the character being able to jump just once), I also encountered a small glitch, when i reached the big rock at the begining, some times when picking the sprout back up the character animation wouldn't play correctly and in would slide around whith the sprout floating in front of me.
To be fair though, it still feels like a good idea, the art and music really draw you in, and i liked the Black and white aestetic with the sprout being the only touch of color there :) You might have overscoped a bit, still the game really feels like it has a lot of effort put into it !
Keep at it you've got a strong base despite the current flaws, and especially considering it's your first jam, you did great ^^