Thanks for reviewing our game! The problem with the trees and rocks are very much known by now haha!
The player gets elevated by rocks/trees but has no gravity to go back down and because of this you can't hurt sheep anymore, sorry ^^
Thank you for liking my art! We had the animation sprites ready but sadly had some programming problems that made them not work in the game.
We will definitely take your feedback into consideration when preparing a post game jam update! :D